Please help! bag of waters or urine?

Kelsey • Baby Girl #1 was born 10/5/17 Baby Girl #2 was born 2/15/19 😊
40+5 (almost 6 days now) and DH and I just had sex to try to get things going. Went to pee after and got a cramp, stood up and a huge gush came out. I couldn't stop it and didn't know it was coming. It was forceful enough for DH to hear it from the bedroom.
This was after I just peed FYI.
I'm strep B positive so I obviously don't want to mess around if it was my water.
The part that's making me unsure is the cramping I felt before the gush. Maybe baby moved, pushed on my bladder, and released more urine?
I've already gone into L&D once for this (although that time was less forceful) so I'd feel really stupid if it was nothing. Please help!