Trimester 2 · Week 16 of 40
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16 weeks pregnant

Your baby is the size of a avocado

Length
4.6
11.6 cm
Weight
3.5 oz
Trimester
2

What's happening at 16 weeks

Heartbeat is now strong enough to hear via office doppler — and sometimes via Cudly.

What your baby is doing

Baby can hear your voice. Skeleton hardening. Eyelashes and eyebrows growing.

What's happening to you

Round ligament pain may start. Bump usually visible now.

On the heartbeat

First realistic week to catch sounds via Cudly. Lie down, quiet room, place phone low on the bump. Be patient.

Your journal prompt for week 16

Write a short letter to your baby. Tell them what's happening today.

Write it in Cudly

Start your pregnancy story today.

Record your baby's heartbeat, write down the day, watch your weeks unfold. Free to download — no doppler, no ads, no data selling.

iOS coming soon