Foetuses as young as 11 weeks have been seen with their thumbs in their mouths. This baby started out sucking his smallest toes and gradually moves on to suck a bigger and better toe.
I just love those pictures. We still have our pictures. We even have small avi movies of our son moving around. It is absolutely astounding to watch them. We watched out son flip over a couple of times and push his legs straight out. God is so wonderful.