I found out at 12 weeks and confirmed at 20 weeks again.
I found at 16 weeks and his legs was open. But sometimes till 20 weeks.
I had the 4d scan done at 16 weeks most amazing thing ever deffinatly recomend them. Iv got pics on my profile you can look at. So worth the money and i really couldnt wait till i was 20 weeks to find out lol x
i found out at 17 weeks and my sister at 14. (same dr) although you can go get a 3d/4d done for fun and find out at 16.
Usually 20 weeks is the normal.
Some will do it as early as like 17 weeks sometimes earlier. My Dr waits until 20 weeks though.