You’ve made it to week 38 of pregnancy — congratulations! 

You’re in the home stretch. But being this far along doesn’t mean the journey is over. In fact, it’s a time full of subtle (and sometimes surprising) changes — both for you and your baby. Here’s a full guide to what’s going on, how you can support yourself, and what to get ready for next.

1. The “Full Term” Misconception

At 38 weeks many people say, “You’re full term now!” … which is technically correct, but there’s more nuance. The truth is: your baby is still undergoing significant brain and lung development. While many organs are ready, the last few weeks matter.
So instead of thinking “time’s up,” think: “Let’s finish strong.”

2. Symptoms No One Really Talks About

This stage comes with some little-known symptoms:

• Lightning crotch: sudden zaps down low as baby’s head presses nerves. Normal, but name it so you don’t freak out.

• Nesting bursts: late-pregnancy oxytocin surge means you might suddenly clean

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Are you 21 weeks pregnant and feeling all the feelings? Let’s talk about it!

As a doula and lactation consultant, I love walking alongside first-time moms through every beautiful (and sometimes weird) part of pregnancy. And week 21? This is such an exciting milestone!

Here’s what’s happening inside your body — and what to expect from your baby right now.

Baby Development at 21 Weeks Pregnant

• Baby is about 10.5 inches long — about the size of a banana!

• They’re swallowing amniotic fluid (and tasting what you eat!)

• Baby’s digestive system is practicing for life outside the womb

• Movements may feel stronger & more rhythmic now

• Tiny eyebrows, eyelashes & facial features are becoming more defined

Common Symptoms at 21 Weeks Pregnant

• Round ligament pain (ouch!)

• Stretching belly & itchy skin

• Trouble sleeping

• Braxton Hicks contractions (practice contractions!)

• Increased hunger — your baby is growing fast!

Doula Tips For...