How long until you find out sex of baby??

Tkelly621 • Mama to four beautiful little girls :-)
It's literally driving me insane!!! Ill be 15 weeks on Thursday and just knowing that I could find out now bugs the heck outta me. I have three girls so I am verrry anxious to find out asap. My husband is a party pooper and won't let me go to an elective ultrasound to find out so im stuck waiting a few more weeks. Booooo