I would say it sounds like your water. Call or go get checked.
That is definitely your water breaking! It can break with a slow leak or a big gush. But the slow leak is more common! With you having sex you'll probably go into labor anytime. I would go get it checked and you'll probably be admitted! Once your water breaks they have about 24 hrs to deliver the baby.
The same exact thing happened to me with my son. It was my water, I wanted about 7-8 hours before going in and they had to put me on strong antibiotics to make sure me and the baby would be fine. I would go to L&D just to be safe. Good luck
I read online to lay down for half an hour with dry panties on && if its a leak it will pool in your vagina then soak your undies when you get up . Well I tried that && my panties are dry so should I just say its discharge && not call the doctor ?