Round ligament pain maybe?
If its been this long & hasn't gotten better try calling triage or nurses hotline at the hospital to ask if you should come in
Idk about a stomach cramp. That's what I thought at first but its been on going for a few hours now. Started like 4:30 now it's 9.
Possibly a stomach cramp? If the pain increase go get checked out. At first I thought kidneys possible gall bladder or appendicitis but you said stomch...hmm
I have never experienced this but id say that if its not painful dont worry too much
but like i said ive never experienced it so im gonna bump it to take it to the top of the list