please help me?!

Jocelyn • First time mommy 😍 Due: April 1,2017
Me and my bf had sex this morning than all of a sudden, i felt really wet it wont on my bed not alot.
It hasnt leak or anything yet. Im 37 weeks.
Is it my water broke? Or pee? 
How long does it take for comtractions to kick in after water breaks?