If it's bothering you, I'd say talk to the nurse and see what she says. She might recommend an ultrasound.

I did one round of clomid back in mid November. Since then I’ve had an intermittent dull ache near my left ovary. It’s never pain, just that I can feel something. It would be occasional but since I think I ovulated last week it’s almost always there. More noticeable when I walk. I’ve never felt anything like it before, and never had an ovarian cyst. At my last scan after the clomid there was nothing there, though they do always have a hard time finding this ovary in my US. Is this normal or something worth calling RE about? I anticipate my next baseline data appointment to be around the 17th.