It's TOTALLY normal at this stage in the game to just be pee but DON'T play mama! Keep an eye on it, monitor a pad for a few hours to see what's happening and get to the doc if ANYTHING feels off. It's ALWAYS better to go and nothing be wrong than to brush it off, not go, and something awful happen. Good luck girl, I hope all is, and STAYS, well!!
If they are telling you to wait put a pad on. If it continues you need to get checked to see if its amniotic fluid a.s.a.p. If it doesnt theres a good chance it could have been pee.