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15 weeks pregnant: What to expect

Your baby at 15 weeks pregnant

Your baby is the size of a small grapefruit (length: 4.5“; weight: 70grams).

Hair today

Your baby’s hair pattern is established this week, but this is no guarantee that he or she will be born with a full head of hair. Ultra-fine, soft hair, called lanugo, is also appearing over your little one's entire body. This downy hair protects the delicate skin from the amniotic fluid and usually disappears just before or after birth.


Underneath that lanugo is a fine layer of skin through which you can see blood vessels already transporting blood. Mouth development continues and baby’s face is capable of moving more and more.

Your pregnancy at 15 weeks

Power surge

Many women report feeling energised at this point in the pregnancy. If you're one of the fortunate ones with that extra oomph, enjoy it! Take a walk, plant some flowers or start planning the baby's room.

Swollen hands, feet and ankles

This swelling, or oedema, is caused by the increased blood circulating through your body and the pressure of your growing uterus on the pelvic veins. Mild exercise is a great way to keep swelling at bay, so try walking, swimming or taking a yoga class. Swelling should always be discussed with your midwife or GP.

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