Week by week · Trimester 1

Pregnancy Week 13

Your baby is about the size of a pea pod this week.

👶 Your baby this week

Vocal cords form. The fetus is fully proportioned in miniature — about the length of a pea pod.

💛 How you might feel

Welcome to the golden second trimester. Appetite and energy usually return.

✅ This week's to-do

Read our registry timeline guide — week 14–20 is the sweet spot to start the registry.

Please note: General information, not medical advice. Every pregnancy is different — your provider's guidance always wins.

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One short email when you enter a new week — what's developing, what to feel ready for, what to do. Timed to you.