Clandara, hopefully your Cheri22 prediction has DEC as the conceive or find out month!! That would be so excellent!
We had a 3d ultrasound at 21 weeks, because we wanted to know the gender and the regular sonographer said it was too early to tell....bullsh!t. You can find out as early as 15 weeks but if they check that early they can be wrong (with a normal scan), so when we went for our appointment at 17 weeks and the doc told us to go for an U/S I said can we go at the next appointment (at 21 wks) because I really want to know the gender and I am worried at 17 wks it may still be a little to ambiguous...he said 17 wks would be fine to tell, but said ok to pushing the U/S to 21 wks anyway. So at 21 wks when the sonographer said it was too early to tell I was super disappointed and we went for the 3d, just to check for gender, which cost us about $75 and took about 30 secs. The 3d sonographer showed us all of him though, his little hands and feet and his belly and back, his head, it was awesome. We didn't and won't pay for an actual 3d U/S with all the bells and whistles though, we think it is too expensive and takes some of the mystery out of seeing bubs when they are born.
Edit: I should say, when the 3d sonographer showed us the baby it was in standard U/S form, she just checked out his willy in 3d! HAhaha He had his legs crossed at first and she started to say maybe it's a girl but as "girl" was coming out of her mouth, he threw his legs WIDE open and flashed his "junk" at the camera. He was (and still is) a cheeky little monkey!