At this week, your new inhabitant is about the size of a cherry, but loads sweeter!

All parts of your baby’s body are present now, but they're not completely formed yet. Week by week, however, your baby is starting to look more and more like a human and less like an alien.

The eyes are completely formed, but the eyelids won't open until week 27. Your child's external sex organs are there but won't be distinguishable as male or female for another few weeks.

Meanwhile, your baby's heart just finished dividing into four chambers. The valves have started to form. If your doctor does an ultrasound, it will show your baby’s heart beating to as fast as 160 beats per minute! As a bonus, you can also see your baby making spontaneous movements.