Baby's brain and nervous system are now fully developed. Her bones are also starting to harden, even though her skull bones will stay soft and separated to make the journey through the birth canal easier. Baby boys' testicles are now beginning to descend from the abdomen into the scrotum.
First-time mums may notice that they are getting more uncomfortable and heavy this week and your belly may have changed shape. This could be because baby's head has moved into your pelvis and is pressing against your cervix. You might want to make sure you're prepared for a stay in hospital by getting a checklist together of all the things you and the baby will need while you're there. Dads or partners could even practise the route to the hospital by taking a dummy run.
It's not unusual for mums to get swollen ankles and hands around now. This is called oedema and is caused by water retention. Surprisingly, the best way to beat this is to drink plenty of water. Any sudden swelling of the feet, ankles, face and hands should be reported to your midwife or doctor immediately, as it can be a sign of pre-eclampsia.