Popping noise/feeling in vagina?

I was laying down in bed & out of no where I felt & heard what sounded like a water balloon popping.. it was kinda weird & I had a pain in my vagina too. I got scared so I decided to get up & check. Not to be TMI but I had a lot of discharge (somewhat thick) come out & I felt like I had to pee.. so I tried peeing & barely anything came out. I'm worried it was my water breaking but I didn't get a big gush of water or anything.. I feel really weird down there. I'm a FTM so I don't know what this could be but I'm kind of worried.. anyone know what this could be? Thank you. I'm 35 weeks & 2 days.