Week 21 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 a carrot
10.5 inches · 12.7 oz
Baby this week
- •Eyebrows and eyelids are fully formed
- •Baby can swallow amniotic fluid and their digestive system is practicing
- •Fingernails are growing and becoming visible
- •Baby's movements are becoming more coordinated and purposeful
You this week
- •Increased appetite and food cravings
- •Possible linea nigra (dark line on belly)
- •Back pain from shifting posture and weight gain
- •Vivid dreams and improved sleep awareness
- •Occasional Braxton Hicks contractions (practice contractions)
This week's tips
- •Schedule your mid-pregnancy anatomy ultrasound if you haven't already—this scan checks baby's development and can reveal the sex if you want to know
- •Invest in a pregnancy pillow to support your lower back and belly while sleeping
- •Practice prenatal yoga or gentle stretching to ease back pain and prepare your body for labor
- •Stay hydrated and eat regular meals—your body is working hard and your baby is growing rapidly
- •Start thinking about childbirth classes and explore your delivery options with your healthcare provider
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
You're past the halfway point—welcome to the second half of your pregnancy! From here on, your baby will focus on growing bigger and stronger, and you'll likely feel more movement and changes in your body.
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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.
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