Any advice?

So with my first I had a hard time telling contractions because I have a high pain tolerance.

This time I’m 38 weeks 1 day, I’ve been getting lots of pressure and Braxton Hicks I think?? Or contractions? No idea…but they’ve been about 4ish minutes apart. I don’t want to go to labor and delivery just for it to be nothing or they die down 😖 any advice? I’m not sure if I should wait til water breaks to be certain it’s time? I’ve lost bits of pieces of mucus plug but no bloody show.