Week 16 of Pregnancy
Second trimester
For informational purposes only. This page is not medical advice. Every pregnancy is different — always consult your doctor, midwife, or healthcare provider for guidance specific to your situation. In an emergency, call your provider or 911 immediately.
Baby is
about the size of an avocado
4.5 inches · 2.5 oz
Baby this week
- •Facial muscles are developing, allowing your baby to make expressions
- •Ears are moving into their final position on the sides of the head
- •Baby can now hear sounds, including your voice and heartbeat
- •Limbs are becoming more coordinated and baby may be moving around (though you might not feel it yet)
You this week
- •Increased energy as morning sickness typically subsides
- •Growing appetite as pregnancy hormones stabilize
- •Possible round ligament pain (sharp, shooting sensations in lower abdomen)
- •Continued breast tenderness and darkening of areolas
- •Skin changes including possible chloasma (dark patches on face)
This week's tips
- •Consider scheduling your quad screen or AFP test this week if you haven't already (optimal window is 15-20 weeks)
- •Invest in supportive, well-fitting maternity bras to ease breast tenderness and provide comfort
- •Stay hydrated and eat regular, balanced meals to support your increased energy needs
- •Practice prenatal yoga or gentle stretching to manage round ligament pain
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
Around week 18-20, you'll have the option for your anatomy ultrasound, where you can see detailed views of your baby's development and learn the sex if you choose. Many pregnant people report this scan feeling very real and emotional.
Track your pregnancy on BringBaby
Join free to track your pregnancy week-by-week and find baby-friendly places to visit as baby grows.
For informational purposes only. This page is not medical advice. Every pregnancy is different — always consult your doctor, midwife, or healthcare provider for guidance specific to your situation. In an emergency, call your provider or 911 immediately.
This content is for informational purposes only and is not medical advice. Every pregnancy and baby is different. Always consult your doctor, midwife, or pediatrician for guidance specific to your situation.
More free tools
Looking for places to bring baby?
Explore BringBaby