Underwear wet everytime you wake up !? (Past due date)

I'm 40 weeks 1 day today calculating it from my first ultrasound due date . Okay so Oct 13, I woke up to a slightly wet underwear right after I woke up (TMI) ik but hear me out , like I was saying I felt my underwear a little wet so I got up since I had to pee then water (not too much ) came out I was like wth did my water break!? Anyways I told my SO (significant other) what happened and I tried to go back to sleep since that happened at 5 am then I couldn't go back to sleep so I went to shower and I wanted to shave lol so I moved the water thing to the side and I notice more of that fluid come out again I was like man this is my water breaking ... So I got ready and my SO took me to the hospital they did 4 tests including an ultrasound to check what that was every test came back negative meaning that it wasn't the fluid from the baby's sac and that my fluid level was 12 so that that was good and so they sent me home . Well today Oct 15 I woke up cause I needed to pee and again my underwear was wet so I went to the bathroom did my business then changed and went back to sleep , woke up again and same thing happend so I changed undressed again and didn't go back to sleep until the afternoon that I wanted to take a nap , probably like at 2pm or so anyways what do u think happened when I woke up ?? -.- my underwear was wet but kinda alot that it went to my butt kinda but funny thing I don't wet the bed so it can't be pee. And I went to the bathroom washed myself and put on a different underwear , have anyone else experienced this like the fluid water or w.e it is , is clear and if u touch it , it comes with like clear mucus so I'm confused on what's happening and was wondering if you or anyone you know has gone through something similar to this ? Help!?