Braxton Hicks?

So last night my fiancé and I got a little intimate, and a couple minutes afterwards I started getting what I assume were Braxton Hicks. My stomach would get really hard everytime I felt them, I kept an eye on them for a couple hours and they never progressed so I finally got myself to fall asleep. This morning I have not felt anymore however I am loosing pieces of my mucus plug and have been having diarrhea. I’m 33+4 weeks, is this all normal or do I need to be taking it easy and go in to see my doctor?