SOS please help

Help. I've had a BH or contraction that hasn't gone away. Like a constant pain since 5:50pm.. it's 6:09pm now

It's mild period level.

I'm 33 weeks and 5 days.

Update: I took a warm bath and cramping has gone down. I still feel light cramps and am feeling stomach tightening now to.

Also I've been having pretty regular BH since 32 weeks and this feels different then those.

Update #2: I drank a lot of water and the cramping went away for about an hour but is now back but with lower back pain now as well as tightening in my stomach. I'm getting worried. I don't want to go into labor yet.