They never got a good enough look at DD - she was always in a bad position or had her legs together, so we didn't find out till 36 weeks (we had the normal 20 week ultrasound and a 3D one at 28 weeks - still didn't find out!!)

My OB has a small ultrasound machine in her room and she was the one that finally told us at 36 weeks what it was. Sometimes these babies just don't want us finding out!!

I hope its a little girl for you