Question 1

How big is my baby at 12 weeks?

Accepted Answer

At 12 weeks, your baby is about 5.4 cm long (crown to rump) and weighs around 14 grams - roughly the size of a plum. According to Nuhah's size guide, all major organs are formed by this point.

Question 2

How big is my baby at 20 weeks?

Accepted Answer

At 20 weeks, your baby measures about 25 cm from head to toe and weighs around 300 grams - about the size of a banana. This is the halfway point of pregnancy.

Question 3

When does my baby start gaining the most weight?

Accepted Answer

Babies gain the most weight in the third trimester, especially from week 28 onwards. They typically triple their weight between weeks 28 and 40, going from about 1 kg to around 3-3.5 kg at birth.

Question 4

What size is a full-term baby?

Accepted Answer

A full-term baby at 40 weeks typically weighs between 2.7 and 4 kg and measures about 48-53 cm long. Average UK birth weight is around 3.3 kg. Every baby is different.

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