Fetal ultrasound - 3 months

At 13 weeks your baby is about 6.7cm long from crown to rump. She weighs about 23g and is fully formed. She has begun swallowing and kicking. All her organs and muscles have formed and are beginning to function. Tiny fingerprints are now at the tips of her fingers.

All this month, your baby's facial muscles are getting a workout as her tiny features form one expression after another. Without you realising it, she may have hiccups now and then, as she practises breathing. By week 16, she will have reached about 10cm in length.


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