Period Like Cramps just shy of 31 weeks?

Hi there. Wanting to get some opinions about some cramps I’ve been dealing with since waking up this morning. It feels like my typical period cramps. The ones that cause like a burning pain in the uterus. It started in front, moved to the back, and the feeling has been lingering for about 15 minutes now. I have switched from laying on my right side to my left to see if it goes away but so far it is still lingering. This is my second third trimester reaching pregnancy and I’ve never dealt with this before so I’m not sure if this is something I should bring up to my doctor. I’m 30 weeks and 5 days.