Still in denial about girl

Madison • Mom of three sons! God answered our prayers and blessed us with a baby girl due 12/31/17 🎀

I had an ultrasound at 14w2d and it shows girl! I was so excited as I already have three sons. I'm worried at my next ultrasound a penis will pop up! Here is the shot the tech got for me. I keep doing research and I'm trying to calm my nerves. I hope this is real lol