This is a weird question but water leaking or semen?

I'm 41 weeks this morning. Last night I bounced on the ball for a while, walked a lot, drank RRL tea and then SO and I had sex. While we were having sex around the end I started to cramp a lot. I had to try to ignore the cramps so he could finish. I was then dealing with more cramps afterwards and I ended up falling asleep to them. I woke up with some cramps in between but I thought it was just gas because I kept passing it all night.

For the entire night I got up to use the washroom 3 times and not once did it leak down my leg. When I wiped there was thick fluid and that's it.

But this morning when I went to use the washroom I had a watery fluid running down both my legs. It got down to my chin really quickly. I put a pad on to see so I'm waiting.

My question is, could it be my water leaking? Usually if it's semen it runs down my leg the first time I get up but it didn't happen at all the first 3 times. It only happened this morning.