To call or not to call

Hi ladies, expecting my first little one on May 17th. Lately for the past three or four days if I'm on my feet and move around more than 10-15min at a time it sets off what I'm assuming are Braxton hicks. I get massive pressure and they come in waves for about an hour or two. I've been losing bits of my mucus plug for about 3 days now.

My stepmom thinks I should call my OB because she doesn't think I should be in pain this often/contracting so much

Baby's movements are fairly regular still and I've been trying to take it easy. I can't even work my full scheduled shifts because I'll start to cramp really bad after about 3 hours and am essentially useless for the next 2

I didn't wanna call because I feel like it's just my body getting ready and I don't wanna overreact if I don't feel it's all that serious.

I watch my pain levels and haven't felt the need to go in to get checked out.

It really just feels like bad period cramps with a lot of pressure and then after awhile will go away

My next OB appointment is on Friday so I was just gonna wait it out until then

Should I call or not call? What would I even say? Or should I call the triage nurse number that was given to me? I don't really have an assigned OB I just go to whoever is available in the facility I go to

38w 5d

Thank you in advance