Cramping and no period on the pill???

I’m supposed to get my period today like every month and I’m on the pill and it always come on a Friday on the last row of my pills, so my 2nd placebo pill. Except this morning I just had terrible cramps on and off and this sharp pain up my (tmi) anus and into my stomach like wtf. Then later on the day only thing I had were very light brown discharge, it doesn’t even look like blood just some discharge.

Is that normal? I’ve never missed a pill in the whole pack, but I’ve taken few pills late like 2-4 hours late but when we have sex he pulls out.

Btw, last month I would do the same with my pills, taking them 2-4 hours late and I still got my period but this time I’m just getting light light brown discharge and cramps, no bleeding.

I take the 24 active pills and I’m on the 3rd placebo pill.

pregnancy? Or nah?