leaking

I know we aren't doctors so please no rude comments, I woke up last night around 2 am due to back pain. I was able to fall back asleep for an hour before I started to have back pain and pelvic pressure, again I was able to fall back asleep for an hour before I woke up due to feel a liquid running down my leg. Tmi on this part, my fiancé and I had sex before we went to bed but I went pee before going to bed. I due realize that not all of it could have come out. Anyways at first I thought I had to go pee so got up and went pee, the thing is I had pee mixed with with a gush of liquid come out. I put a pad on to keep track of how much was coming out, when I woke up this morning the pad was soaking wet so I changed it and put a call into me doctor right away. I'm a ftm and I'm 33w1d, I was born at 33 weeks his aunt was born at 37( yes I know technically full term) and this sperm donor was born between 35 and 36 weeks. When I talked to his doctor about this she said that he has a higher chance of being born early. Any other mommies have this or know someone who has?? I could really use some positive comments or advice thank you