Week 23
Trimester 2Days 22+0 to 22+6
Baby is now the size of a large mango
Welcome to Week 23. Your baby is becoming stronger, more active, and increasingly aware of the world around them. Kicks may now be strong enough to surprise you, and you may even notice patterns in your baby's daily activity. At this stage, your baby's body is focusing on growth and preparing important organs for life after birth. For many mothers, pregnancy is starting to feel more physical as the bump grows and everyday activities require a little more planning.
Length
28–29 cm
11.0 in–11.4 in
Weight
500–600 g
1102.3 lb–1322.8 lb
Development highlights
- check_circleThe brain and nervous system continue developing rapidly, and your baby is becoming better at responding to their environment — reacting to loud sounds, movement, and familiar voices.
- check_circleHearing is increasingly sophisticated — your baby may now detect conversations, music, barking dogs, and household noises.
- check_circleThe lungs are making important progress: tiny air sacs continue forming and surfactant production is beginning.
- check_circleYour baby's skin still appears wrinkled and loose as there is still very little body fat — this will gradually fill out over the coming months.
This week's milestones
- check_circleResponding to external sounds and stimuli.
- check_circleSurfactant production beginning in the lungs.
- check_circleRegular movement patterns emerging.
- check_circleHearing increasingly sophisticated.
Fun fact
Your baby may already have favorite times of day to be active, and many parents start noticing regular movement patterns around this stage.
Weekly checklist
- Continue prenatal vitamins.
- Stay hydrated.
- Eat balanced meals.
- Stay active.
- Prioritize sleep.
- Enjoy connecting with your baby.
Frequently asked questions
Is it normal for baby movements to feel much stronger?
Yes. Many parents notice a significant increase in movement strength during the early twenties.
Can my baby hear me clearly now?
Your baby can hear many sounds, although they are still softened by the womb.
Why am I getting out of breath more easily?
Pregnancy increases your body's oxygen needs and places additional demands on your cardiovascular system.
Is it normal to start thinking a lot about birth?
Absolutely. As pregnancy progresses, many parents naturally begin focusing more on labor, delivery, and life with their baby.
Related tools
shopping_bagHelpful picks for Trimester 2
Browse all pregnancy products →Momcozy Maternity Pregnancy Pillow
Full-length maternity pillow for bump support and back relief — great from the second trimester onward.
Kindred Bravely Maternity Compression Socks
Graduated compression socks to reduce swelling and relieve tired legs — great from the 2nd trimester onward.
Palmer's Cocoa Butter Stretch Mark Lotion
A trusted daily moisturizer for stretch mark prevention during pregnancy with vitamin E and collagen.
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Medical information disclaimer
The content on this page is provided for general informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment.
Always consult your GP, midwife, health visitor, paediatrician, or other qualified healthcare provider before making decisions about your health or your child's health and development. Never ignore or delay seeking professional advice because of something you have read on BabyScout. If you think there is a medical emergency, call 999 (UK) or your local emergency services immediately.