I think I'm having a girl

Well... During the last scan, we told the Dr we don't want to know. But this baby wouldn't chill for a second. Kept twisting and jumping, legs up in the air facing inwards. I don't know how big the little penis must be for you to say it's a boy but I didn't see anything so I'm assuming I'm having a very active girl. Heart rate 140bpm... I lost my daughter 9 years ago, so the idea of having a daughter both scares and excites me... Am I crazy...