Just for a bit of fun I had a scan at 12 weeks and 21 weeks and was wondering could you tell the sex of a baby by looking at the scan pics? Please see below I have heard of the "nub theory" don't no how accurate it is. First 2 scan pictures are at 12 weeks last one is at 21 weeks. Also done a poll so getting voting.
12 Weeks
https://www.in-gender.com/cs/forums/storage/95/2552240/img008.jpg
12 Weeks
https://www.in-gender.com/cs/forums/storage/95/2552241/img009.jpg
21 Weeks
https://www.in-gender.com/cs/forums/storage/95/2552242/img005.jpg
12 Weeks
https://www.in-gender.com/cs/forums/storage/95/2552240/img008.jpg
12 Weeks
https://www.in-gender.com/cs/forums/storage/95/2552241/img009.jpg
21 Weeks
https://www.in-gender.com/cs/forums/storage/95/2552242/img005.jpg