Right side cramping

2 nights ago I noticed some cramping on my right side of my stomach. I’m nearly 32 weeks pregnant for reference. I didn’t notice it yesterday but then today I’ve been on my feet most of the day and now it seems to be “back.” It’s like a dull ache on the right side of my stomach, kind of in line with the middle of my stomach aka where my belly button is and a bit above that too. Somewhere in that general area, on the right side. It’s not always present it sort of has been coming and going, and not super painful like I said a dull ache.

My OB’s office is closed until Tuesday so it’s not something I could call to chat with her about. Please let me know what you recommend, I have an appointment with her next Thursday so was thinking to just keep an eye on it/make a mental note to discuss with her then?