I'm 20 weeks pregnant an I just had my first 3d 4d ultrasound on 12/02/13 and I was told I was having a boy. Now that I'm home and I been showing friends and family all the sonogram pictures we are seeing two. I don't know if the lady just didn't look at the pictures taken but it is clear as day. Is there anyway that the machine messed up an somehow made like a mirror imagine of my baby? My due date was april 23, 2014 but now its been moved a week ahead to april 17 the doctor said cause the babies legs are so long.