Leaking fluid or increased discharge?

Sativa
So I lost a few pieces of mucus plug two days ago. Then this morning I felt very wet down there like I might have peed a little. When I look at my underwear they look wet like I did but I know I didn't. I'm just wondering if this could be excessive discharge or if I could have a slow leak. I don't want to go through the trouble of gettin ahold of the on call doctor for nothing. I'm currently 38 weeks. The feeling is kind of like when you wake up to your period starting. Sorry for the grossness. Ftm here.