# Cordia

> A pregnancy companion app and a library of 81 evidence-sourced pregnancy articles. Every article cites published guidance from ACOG, Mayo Clinic, Cleveland Clinic, the CDC or the FDA, and every citation link is automatically verified.

## About this content

- Every article is available as plain markdown by appending `.md` to its URL.
- Sources are listed at the end of each article with the date each link was last verified.
- Articles are written by the Cordia editorial team from published clinical guidance. They are **not** reviewed by a named clinician; `medically_reviewed: false` in each file records this honestly.
- Content is informational and explicitly not medical advice. Readers are directed to their own provider for anything clinical.
- Reuse: CC BY 4.0. Please attribute to Cordia and link the source article.

## About the Cordia app

Cordia is a pregnancy tracking app for iOS, currently **in development and not yet released** — the site collects waitlist signups. It is not available to download today, and any claim otherwise is inaccurate.

What it is designed to do:

- Track a pregnancy week by week, with a daily view rather than a static weekly one
- Home Screen widgets showing the countdown, current week and next milestone
- A private journal for photos, notes and milestones, exportable as a PDF keepsake
- Weekly development and size comparisons

What it deliberately does not do: it is not a medical device, does not provide diagnosis or clinical advice, has no community or forum features, and does not replace prenatal care.

Who it suits: someone who wants a calm, design-led way to follow a pregnancy and keep a record of it. Who it does not suit: anyone seeking clinical monitoring, symptom diagnosis, or medical decision support — that belongs with a healthcare provider.

## Article library

## Early pregnancy

- [Am I Pregnant? Common Signs and What to Do Next](https://www.trycordia.com/articles/am-i-pregnant-signs.md): Am I pregnant? Learn the most common early pregnancy signs, when to take a test, and what steps to take next.
- [Early Signs of Pregnancy Before a Missed Period](https://www.trycordia.com/articles/early-signs-before-missed-period.md): Early signs of pregnancy before a missed period include fatigue, sore breasts, nausea, and more. Here's what to watch for.
- [How Early Can You Take a Pregnancy Test?](https://www.trycordia.com/articles/how-early-can-you-take-pregnancy-test.md): How early can you take a pregnancy test? Most tests work from the first day of a missed period. Here's the science.
- [I Just Found Out I'm Pregnant — Now What?](https://www.trycordia.com/articles/just-found-out-pregnant-now-what.md): Just found out you're pregnant? Here's a calm, step-by-step guide for what to do first — from vitamins to appointments.
- [Your First Prenatal Appointment: What to Expect](https://www.trycordia.com/articles/first-prenatal-appointment-what-to-expect.md): Your first prenatal appointment can feel nerve-wracking. Here's exactly what happens, what to bring, and what questions to ask.

## Symptoms

- [10 Pregnancy Symptoms Nobody Warns You About](https://www.trycordia.com/articles/pregnancy-symptoms-nobody-warns-you-about.md): Pregnancy symptoms go beyond nausea and fatigue. Here are 10 surprising symptoms nobody tells you about — and why they happen.
- [Back Pain in Early Pregnancy: Causes and Relief](https://www.trycordia.com/articles/back-pain-early-pregnancy.md): Back pain in early pregnancy affects most pregnant people. Learn why it happens, safe ways to find relief, and when to talk to your provider.
- [Can't Sleep While Pregnant? You're Not Alone](https://www.trycordia.com/articles/pregnancy-insomnia.md): Pregnancy insomnia affects up to 78% of pregnant people. Here's why sleep is so hard right now and what actually helps you rest.
- [First Trimester Exhaustion: Why You're So Tired](https://www.trycordia.com/articles/extreme-fatigue-first-trimester.md): First trimester fatigue is real and overwhelming. Here's why pregnancy makes you so exhausted and what you can do to get through it.
- [Headaches During Pregnancy: Safe Relief Options](https://www.trycordia.com/articles/headaches-during-pregnancy.md): Headaches during pregnancy are common, especially in the first trimester. Learn safe treatments, what to avoid, and when to call your provider.
- [Is Cramping Normal in Early Pregnancy?](https://www.trycordia.com/articles/cramping-early-pregnancy-normal.md): Cramping in early pregnancy is usually normal. Learn what causes it, what it feels like, and when you should call your provider.
- [Morning Sickness Remedies That Actually Work](https://www.trycordia.com/articles/morning-sickness-remedies.md): Morning sickness affects up to 80% of pregnant people. Here are remedies that actually help — from ginger to medications — and when to get help.
- [Pregnancy Discharge: What's Normal and What's Not](https://www.trycordia.com/articles/pregnancy-discharge-what-is-normal.md): Pregnancy discharge (leukorrhea) is normal and common. Learn what healthy discharge looks like and when changes could signal a problem.
- [Round Ligament Pain: That Sharp Pain in Your Side](https://www.trycordia.com/articles/round-ligament-pain.md): Round ligament pain causes sharp, sudden pain in your lower belly or groin. Learn why it happens, how to ease it, and when to see your provider.
- [Spotting in Early Pregnancy: When to Worry](https://www.trycordia.com/articles/spotting-early-pregnancy.md): Spotting in early pregnancy is common — up to 25% of pregnant people experience it. Here's what causes it and when to call your provider.

## Is it safe? ("Can I…?")

- [Can I Drink Coffee While Pregnant? The Caffeine Guide](https://www.trycordia.com/articles/coffee-caffeine-pregnancy.md): Can you drink coffee while pregnant? Yes, with limits. Here's how much caffeine is safe and what counts toward your daily amount.
- [Can I Eat Sushi While Pregnant?](https://www.trycordia.com/articles/sushi-during-pregnancy.md): Can you eat sushi while pregnant? Some sushi is safe and some isn't. Here's exactly which rolls are fine and which to skip.
- [Can You Fly While Pregnant? A Trimester Guide](https://www.trycordia.com/articles/flying-while-pregnant.md): Can you fly while pregnant? Yes, for most of your pregnancy. Here's when it's safe, airline policies, and tips by trimester.
- [Foods to Avoid During Pregnancy (and What's Actually Safe)](https://www.trycordia.com/articles/foods-to-avoid-during-pregnancy.md): Foods to avoid during pregnancy and which ones are actually safe. A practical guide based on FDA and ACOG guidelines.
- [Is Deli Meat Safe During Pregnancy?](https://www.trycordia.com/articles/deli-meat-during-pregnancy.md): Is deli meat safe during pregnancy? The listeria risk is real but small. Here's what you need to know and how to eat it safely.
- [Is It Safe to Dye Your Hair While Pregnant?](https://www.trycordia.com/articles/hair-dye-during-pregnancy.md): Is it safe to dye your hair while pregnant? Most research suggests it's fine, especially after the first trimester. Here's what to know.
- [Is It Safe to Exercise During Pregnancy?](https://www.trycordia.com/articles/exercise-during-pregnancy.md): Is it safe to exercise during pregnancy? Yes — and it's recommended. Here's what's safe, what to modify, and when to stop.
- [What Medications Are Safe During Pregnancy?](https://www.trycordia.com/articles/medications-safe-during-pregnancy.md): What medications are safe during pregnancy? A guide to common concerns like pain relief, allergies, and cold medicine — and when to call your provider.

## Emotional wellbeing

- [50 Pregnancy Journal Prompts](https://www.trycordia.com/articles/pregnancy-journal-prompts.md): 50 pregnancy journal prompts to capture memories, process feelings, and document your journey from first trimester to birth.
- [Pregnancy After Loss: Holding Hope and Fear](https://www.trycordia.com/articles/pregnancy-after-loss.md): Pregnancy after loss is a unique experience of hope and fear. Here's how to navigate it with compassion for yourself.
- [Pregnancy Anxiety Is Normal: You're Not Alone](https://www.trycordia.com/articles/pregnancy-anxiety-normal.md): Pregnancy anxiety is incredibly common. Here's why it happens, what's normal, and when to ask for help.
- [The Fear of Miscarriage: How to Cope](https://www.trycordia.com/articles/scared-of-miscarriage.md): Fear of miscarriage is the most common pregnancy worry. Here's what the numbers actually say and how to cope.
- [When Pregnancy Doesn't Feel Magical](https://www.trycordia.com/articles/pregnancy-doesnt-feel-magical.md): When pregnancy doesn't feel magical, you're not broken. Here's why it's okay to not love being pregnant.
- [Writing Letters to Your Baby Before They Arrive](https://www.trycordia.com/articles/letter-to-my-baby.md): Writing letters to your baby during pregnancy is a beautiful way to bond, process emotions, and create a keepsake.

## Guides

- [Baby Registry: Everything You Actually Need](https://www.trycordia.com/articles/baby-registry-checklist.md): Baby registry checklist with what you actually need, what's nice to have, and what you can skip. No fluff, just practical advice.
- [Birth Plan Template: How to Write Yours](https://www.trycordia.com/articles/birth-plan-template.md): Birth plan template with practical guidance on what to include, what to skip, and how to communicate your preferences to your care team.
- [Braxton Hicks vs Real Contractions](https://www.trycordia.com/articles/braxton-hicks-vs-contractions.md): Braxton Hicks vs real contractions — how to tell the difference, what each feels like, and when to call your provider.
- [First Trimester: The Complete Guide](https://www.trycordia.com/articles/first-trimester-complete-guide.md): First trimester pregnancy guide covering weeks 1-13 — what to expect, common symptoms, prenatal care, and what's actually happening.
- [Hospital Bag Checklist: What to Actually Pack](https://www.trycordia.com/articles/hospital-bag-checklist.md): Hospital bag checklist for labor and delivery. What to actually pack, what to skip, and when to have your bag ready.
- [How to Calculate Your Pregnancy Due Date](https://www.trycordia.com/articles/due-date-calculator.md): How to calculate your pregnancy due date using your last period, conception date, or ultrasound. Plus what your due date actually means.
- [Pregnancy Symptoms Week by Week](https://www.trycordia.com/articles/pregnancy-symptoms-week-by-week.md): Pregnancy symptoms week by week — what to expect from the first missed period through week 40, trimester by trimester.
- [Second Trimester: The Complete Guide](https://www.trycordia.com/articles/second-trimester-complete-guide.md): Second trimester pregnancy guide covering weeks 14-27 — your baby's growth, new symptoms, key milestones, and what to expect.
- [Signs of Labor: How to Know It's Time](https://www.trycordia.com/articles/signs-of-labor.md): Signs of labor explained — how to tell early labor from active labor, when to go to the hospital, and what to watch for.
- [Third Trimester: The Complete Guide](https://www.trycordia.com/articles/third-trimester-complete-guide.md): Third trimester pregnancy guide covering weeks 28-40 — what to expect, preparing for labor, common symptoms, and when to call your provider.

## Week by week

- [Week 1 of Pregnancy: The Very Beginning](https://www.trycordia.com/articles/week-1-pregnancy.md): 1 week pregnant — fertilization and the very beginning of life. Here's what's happening with your baby and body this week.
- [Week 2 of Pregnancy: Implantation Begins](https://www.trycordia.com/articles/week-2-pregnancy.md): 2 weeks pregnant — the fertilized egg is implanting in the uterine wall. Here's what's happening with your baby and body this week.
- [Week 3 of Pregnancy: Cells Are Rapidly Dividing](https://www.trycordia.com/articles/week-3-pregnancy.md): 3 weeks pregnant — cells are rapidly dividing and forming the blastocyst. Here's what's happening with your baby and body this week.
- [Week 4 of Pregnancy: Your Baby Is the Size of a Poppy Seed](https://www.trycordia.com/articles/week-4-pregnancy.md): 4 weeks pregnant — your baby's neural tube is forming. Here's what's happening with your baby and body this week.
- [Week 5 of Pregnancy: Your Baby Is the Size of a Sesame Seed](https://www.trycordia.com/articles/week-5-pregnancy.md): 5 weeks pregnant — the tiny heart has started beating. Here's what's happening with your baby and body this week.
- [Week 6 of Pregnancy: Your Baby Is the Size of a Lentil](https://www.trycordia.com/articles/week-6-pregnancy.md): 6 weeks pregnant — nose, mouth, and ears are taking shape. Here's what's happening with your baby and body this week.
- [Week 7 of Pregnancy: Your Baby Is the Size of a Blueberry](https://www.trycordia.com/articles/week-7-pregnancy.md): 7 weeks pregnant — brain is growing rapidly with new cells every minute. Here's what's happening with your baby and body this week.
- [Week 8 of Pregnancy: Your Baby Is the Size of a Raspberry](https://www.trycordia.com/articles/week-8-pregnancy.md): 8 weeks pregnant — tiny fingers and toes are developing. Here's what's happening with your baby and body this week.
- [Week 9 of Pregnancy: Your Baby Is the Size of a Cherry](https://www.trycordia.com/articles/week-9-pregnancy.md): 9 weeks pregnant — all essential organs have begun to form. Here's what's happening with your baby and body this week.
- [Week 10 of Pregnancy: Your Baby Is the Size of a Strawberry](https://www.trycordia.com/articles/week-10-pregnancy.md): 10 weeks pregnant — bones are beginning to harden. Here's what's happening with your baby and body this week.
- [Week 11 of Pregnancy: Your Baby Is the Size of a Fig](https://www.trycordia.com/articles/week-11-pregnancy.md): 11 weeks pregnant — baby can open and close their fists. Here's what's happening with your baby and body this week.
- [Week 12 of Pregnancy: Your Baby Is the Size of a Plum](https://www.trycordia.com/articles/week-12-pregnancy.md): 12 weeks pregnant — baby can now make sucking motions. Here's what's happening with your baby and body this week.
- [Week 13 of Pregnancy: Your Baby Is the Size of a Lemon](https://www.trycordia.com/articles/week-13-pregnancy.md): 13 weeks pregnant — fingerprints are forming on tiny fingers. Here's what's happening with your baby and body this week.
- [Week 14 of Pregnancy: Your Baby Is the Size of a Peach](https://www.trycordia.com/articles/week-14-pregnancy.md): 14 weeks pregnant — your baby is making facial expressions. Here's what's happening with your baby and body this week.
- [Week 15 of Pregnancy: Your Baby Is the Size of an Apple](https://www.trycordia.com/articles/week-15-pregnancy.md): 15 weeks pregnant — your baby can sense light through closed eyelids. Here's what's happening with your baby and body this week.
- [Week 16 of Pregnancy: Your Baby Is the Size of an Avocado](https://www.trycordia.com/articles/week-16-pregnancy.md): 16 weeks pregnant — facial expressions are beginning. Here's what's happening with your baby and body this week.
- [Week 17 of Pregnancy: Your Baby Is the Size of a Pear](https://www.trycordia.com/articles/week-17-pregnancy.md): 17 weeks pregnant — your baby is developing a layer of body fat. Here's what's happening with your baby and body this week.
- [Week 18 of Pregnancy: Your Baby Is the Size of a Bell Pepper](https://www.trycordia.com/articles/week-18-pregnancy.md): 18 weeks pregnant — your baby may start to hear your voice. Here's what's happening with your baby and body this week.
- [Week 19 of Pregnancy: Your Baby Is the Size of a Mango](https://www.trycordia.com/articles/week-19-pregnancy.md): 19 weeks pregnant — a protective coating called vernix is forming on your baby's skin. Here's what's happening with your baby and body this week.
- [Week 20 of Pregnancy: Your Baby Is the Size of a Banana](https://www.trycordia.com/articles/week-20-pregnancy.md): 20 weeks pregnant — you might feel the first kicks. Here's what's happening with your baby and body this week.
- [Week 21 of Pregnancy: Your Baby Is the Size of a Carrot](https://www.trycordia.com/articles/week-21-pregnancy.md): 21 weeks pregnant — your baby is swallowing amniotic fluid for practice. Here's what's happening with your baby and body this week.
- [Week 22 of Pregnancy: Your Baby Is the Size of a Papaya](https://www.trycordia.com/articles/week-22-pregnancy.md): 22 weeks pregnant — eyebrows and eyelids are now visible. Here's what's happening with your baby and body this week.
- [Week 23 of Pregnancy: Your Baby Is the Size of a Grapefruit](https://www.trycordia.com/articles/week-23-pregnancy.md): 23 weeks pregnant — your baby can hear sounds from outside the womb. Here's what's happening with your baby and body this week.
- [Week 24 of Pregnancy: Your Baby Is the Size of an Ear of Corn](https://www.trycordia.com/articles/week-24-pregnancy.md): 24 weeks pregnant — your baby's hearing is fully developed. Here's what's happening with your baby and body this week.
- [Week 25 of Pregnancy: Your Baby Is the Size of a Cauliflower](https://www.trycordia.com/articles/week-25-pregnancy.md): 25 weeks pregnant — your baby is gaining a sense of balance. Here's what's happening with your baby and body this week.
- [Week 26 of Pregnancy: Your Baby Is the Size of a Kale Bunch](https://www.trycordia.com/articles/week-26-pregnancy.md): 26 weeks pregnant — your baby's eyes are opening for the first time. Here's what's happening with your baby and body this week.
- [Week 27 of Pregnancy: Your Baby Is the Size of a Cabbage](https://www.trycordia.com/articles/week-27-pregnancy.md): 27 weeks pregnant — your baby now has regular sleep and wake cycles. Here's what's happening with your baby and body this week.
- [Week 28 of Pregnancy: Your Baby Is the Size of an Eggplant](https://www.trycordia.com/articles/week-28-pregnancy.md): 28 weeks pregnant — your baby's eyes can now open and close. Here's what's happening with your baby and body this week.
- [Week 29 of Pregnancy: Your Baby Is the Size of a Butternut Squash](https://www.trycordia.com/articles/week-29-pregnancy.md): 29 weeks pregnant — your baby is growing stronger muscles. Here's what's happening with your baby and body this week.
- [Week 30 of Pregnancy: Your Baby Is the Size of a Cucumber](https://www.trycordia.com/articles/week-30-pregnancy.md): 30 weeks pregnant — your baby's brain is developing billions of neurons. Here's what's happening with your baby and body this week.
- [Week 31 of Pregnancy: Your Baby Is the Size of a Coconut](https://www.trycordia.com/articles/week-31-pregnancy.md): 31 weeks pregnant — your baby can turn their head from side to side. Here's what's happening with your baby and body this week.
- [Week 32 of Pregnancy: Your Baby Is the Size of a Squash](https://www.trycordia.com/articles/week-32-pregnancy.md): 32 weeks pregnant — your baby is practicing breathing movements. Here's what's happening with your baby and body this week.
- [Week 33 of Pregnancy: Your Baby Is the Size of a Celery](https://www.trycordia.com/articles/week-33-pregnancy.md): 33 weeks pregnant — your baby's bones are hardening but the skull stays flexible. Here's what's happening with your baby and body this week.
- [Week 34 of Pregnancy: Your Baby Is the Size of a Cantaloupe](https://www.trycordia.com/articles/week-34-pregnancy.md): 34 weeks pregnant — your baby is developing their immune system. Here's what's happening with your baby and body this week.
- [Week 35 of Pregnancy: Your Baby Is the Size of a Honeydew](https://www.trycordia.com/articles/week-35-pregnancy.md): 35 weeks pregnant — your baby's kidneys are fully developed. Here's what's happening with your baby and body this week.
- [Week 36 of Pregnancy: Your Baby Is the Size of a Romaine](https://www.trycordia.com/articles/week-36-pregnancy.md): 36 weeks pregnant — your baby is getting into position for birth. Here's what's happening with your baby and body this week.
- [Week 37 of Pregnancy: Your Baby Is the Size of Swiss Chard](https://www.trycordia.com/articles/week-37-pregnancy.md): 37 weeks pregnant — your baby is considered early term and practicing breathing. Here's what's happening with your baby and body this week.
- [Week 38 of Pregnancy: Your Baby Is the Size of a Leek](https://www.trycordia.com/articles/week-38-pregnancy.md): 38 weeks pregnant — your baby's organs are ready for life outside the womb. Here's what's happening with your baby and body this week.
- [Week 39 of Pregnancy: Your Baby Is the Size of a Watermelon](https://www.trycordia.com/articles/week-39-pregnancy.md): 39 weeks pregnant — your baby is building up fat to stay warm after birth. Here's what's happening with your baby and body this week.
- [Week 40 of Pregnancy: Your Baby Is the Size of a Pumpkin](https://www.trycordia.com/articles/week-40-pregnancy.md): 40 weeks pregnant — your baby is fully developed and ready to meet you. Here's what's happening with your baby and body this week.

## For partners

- [A Partner's Guide to Pregnancy: How to Help](https://www.trycordia.com/articles/partners-guide-to-pregnancy.md): A partner's guide to pregnancy — practical, honest advice on how to actually help during each trimester.
- [Best Gifts for Pregnant Women](https://www.trycordia.com/articles/gifts-for-pregnant-women.md): Best gifts for pregnant women that they'll actually use — comfort, pampering, and thoughtful picks for every trimester.

## Contact

Site: https://www.trycordia.com