This isn't a gender question, so I apologize if there is a better place to put this - NBP feel free to move it if it belongs elsewhere. These are my twins at 10w (although they are measuring more like 9w5d). I'm worried the line between them looks thin - does anyone have an opinion if they look like di/di or mono/di ? I was too in shock when my OB told it was twins to ask any questions and I don't go back for a real ultrasound until 15 weeks.