M.C.
I get this. I'm 46 now and have had uterine fibroids for a while. When I ovulate I get the bloating and bad cramps either on my left or right lower pelvis for about 12 hours. Sometimes they are bad enough that I have to take time out and just sit. I'm at the age where I'm having fun menstrual and ovulation issues, so personally I can't wait for menopause! I don't know how old you are, but I would let the OB know about it at your next appointment, or sooner if it gets worse. Most likely is just one of the fun and exciting things we women get to go through!