First trimesterWeek 13 of 40
Your baby at 13 weeks pregnant
Your baby is the size of a lemon — about 2.9 in long and weighing approximately 0.8 oz.
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Lemon
The size of a lemon
Length (crown to heel)
2.9 in
Approximate weight
0.8 oz
Baby's hand
12mm
Baby's foot
14mm
Pregnancy progress25%
🌱 Baby's development at 13 weeks
Welcome to the second trimester! Your baby's fingerprints are fully formed.
🤰 Your body at 13 weeks
Welcome to the second trimester! Energy often returns, nausea typically fades, and your bump may become visible. Many women say this is the best part.
✨ Did you know?
Your baby's fingerprints are now fully unique — even identical twins develop different fingerprints at this stage.
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