I don't think it can change, you can see the nub at 15 weeks and if it's a girl it won't change. Congrats Team Pink
Duh it can't change in that way
The gender of the baby is determind before you can even see the parts. The baby doesnt change from a girl to a boy or boy to a girl. The ultrasound people can just make mistakes if the picture is blurry.
The gender can change I would wait until I have a official sonogram just to make sure its still a girl because you never know so wait until your official sonogram in two weeks
I dont think a penis is going to pop out or could if they say its a girl. The gender isnt going to change. Lol we found out at 15 1/2 weeks it was a girl.