Second trimester
Pregnancy Week 23
Your baby is about the size of a large mango.
Size
large mango
Length
29 cm
Weight
500 g
Baby in week 23
Lungs continue developing surfactant. Pancreas begins making hormones.
What you may notice this week
Swelling in feet/ankles may start. Possible snoring.
Tips for week 23
- Elevate feet when resting
- Avoid standing for long periods
- Use a body pillow at night
Tools that pair with this week
Due Date Calculator
Estimate your delivery date by last period or conception date. Naegele’s rule plus cycle adjustments.
Week Tracker
See exactly how many weeks and days pregnant you are, plus your trimester and key milestones.
Contraction Timer
Tap once to start, once to stop. Tracks duration, frequency, and pattern over time.
Ovulation Calculator
Find your fertile window based on your cycle length. Plan or avoid with confidence.
Baby Name Generator
Filter by origin, style, length, and starting letter. Boys, girls, and unisex.
Growth Percentile
Plot your baby’s weight, length, and head circumference against WHO percentile curves.