Clomid Discomfort

I'm on round two of clomid at 100mg im on CD 18 with no LH surge but the test results are getting less faint. Anyways, about three days ago I started feeling pressure & discomfort in my pelvis, it's more cramping feeling now with slight pressure on the left side. I'm just asking is this normal on clomid? I don't ovulate on my own & have always had irregular cycles & I'm 29. I would just appreciate some insights. Thanks.