It's common for the girl parts to look like swollen balls, haha mine does too! It's just swollen down there for her too. I found out at 17w6d it was a girl, and I go back at 36 weeks and we'll see if it's a girl still (yikes!!) My U/S tech sounded very confident, it's MUCH easier to tell when it's a boy, 4 u/s's would've picked that up
Well in my first.ultrasound I was about 14 weeks (girl) 2nd ultrasound 16 weeks (girl) & 3rd ultrasound 18weeks (girl) but at my 4th ultrasound 30 weeks she said girl but didnt look to be 100% sure to me the picture looks like swollen ballz hahaha
for a girl they shoudl be able to see the labia the 3 little lines sometimes if the baby isn't sitting right they will say what they think but if you have had 4 u/s i'm pretty sure your having a girl most the time they will print you out a picture saying what it is and pointing to it. maybe your co worker had the same tech everytime and they were just going off the notes and didn't really look each time i have also seen where if there is a newer tech they will just copy what the other person said and not realy look
Lol well hopefully you do have your girl. I guess its just time to wait and see :-)
Eeekk! That would sure be a surprise! Im kinda worried about that too :/ but with 4 ultrasounds, you should be good!