When your water breaks?
I knew because I had a uncontrollable trickle of fluid every time I moved or my baby moved and also sometimes just randomly. It actually happened while I was on the toilet and in my half alseep stupor I thought I just couldn't stop peeing. LOL!
Depends. If you think it did then it's best to get checked. Are you having contractions? Leaking fluid?
When my water Broke in 03 i had just gotten up i have to pee sooo bad ...And as i peeing it just gushed out and didnt stop for an hour so i knew ...My water with my dd was oct of last year ...I was sleeping and thought i had peed myself but it wouldnt stop so i knew again...some people say they hear a "pop" or even feel like some pressure was released ...some notice alittle blood and some like me no blood ...hope this helped