Really bad period cramps

Rosie

I've been really getting bad, period like cramps for about 2 hours.. there not nessisary getting worse but they do hurt.

It's also making me feel sick & like I constantly have to pee.

Also when I got out of bed there was a bubbling sounds but nothing came out- I thought my water might be breaking, but they didn't.

Could this be signs of early labour?