Is mild pelvic pain normal?

Tara • 25 years old. TTC #1 since 7/2018 with my husband of 3 years. ❤️

Throughout my cycle, I get occasional, mild pinching pain in my pelvic area. It’s always one side, but different sides each time (I.e., pinching pain on the right side, then the left side, etc.) It happens about an inch or so in from either hip bone. Honestly, it’s probably not even something I would have noticed if I weren’t TTC it’s so mild, but now I’m concerned that’s why it’s taking so long (6 months with no luck). I don’t have any symptoms of endo besides the mild pelvic pain. Just curious how problematic this is. I also did an ab workout Tuesday evening which seems to have made the pinching more noticeable.