Clomid / OPK / BBT

I’m confused. Can Clomid cause a delay in ovulation or prohibit it from happening? Anyone experienced this?

I usually ovulate on my own (always CD13) and I have spot on 27 day cycles. After TTC for 2+ years, I’m on my first round of Clomid, 50mg CD3-7.

I have read that Clomid can cause false “highs/positive/peak” with OPKs and early ovulation but I am in the complete opposite boat. My OPKs always show some type darkening line by CD12 (today) but I’m still a vvvfl today. I use both Premom and easy@home and they are consistent, like O day isn’t even close?!?

I did have a huge dip in temp today (0.8 degree dip) and so one of my many apps change my O day today.

I do feel pressure in my abdomen today, which I am typically asymptotic. My body never tells me when I am going to ovulate or start my period. Also, not much CM at all (ever) but I typically use Pre-seed.