Week 23 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 large mango
11.4 inches · 1.1 lbs
Baby this week
- •Baby's lungs are developing air sacs and producing surfactant, a crucial substance for breathing after birth
- •Hearing is now well-developed—baby can recognize your voice and respond to loud sounds
- •Baby's grip is strengthening and they may suck their thumb regularly
- •Blood vessels in the lungs are forming to prepare for breathing
You this week
- •Increased backache as your center of gravity shifts and your belly grows
- •Braxton Hicks contractions (practice contractions) may start—they're usually painless and irregular
- •Swelling in feet and ankles, especially toward evening
- •Shortness of breath as the uterus presses upward on your diaphragm
- •Leg cramps, particularly at night
- •Increased appetite and possible food aversions
This week's tips
- •Practice good posture and consider a maternity support belt to ease back pain
- •Wear comfortable, supportive shoes and elevate your feet when possible to reduce swelling
- •Stay hydrated and stretch gently before bed to help prevent leg cramps
- •Talk to your baby—they can hear you now and may respond with movement
- •Schedule a glucose tolerance test around now if your provider hasn't already
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
You're entering the final trimester in just a few weeks! Baby's survival odds outside the womb are improving significantly, though there's still important development ahead. Many people start thinking about birth preferences and labor support around this time.
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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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