Am I pregnant?

rena

I had sex and it was, according to my period app, while I was ovulating. In the window of ovulation. The condom fell off during it one of the times and a few other times it was fine at least I think. The night it fell off though, I took a plan b but am just now learning that plan b literally doesn’t work when ovulating. Can anyone tell me other or??? This was almost 2 weeks ago and today I was having brownish discharge with slight cramping. I’ve been very irritated at everything recently and took a test that came back negative. I just think it’s too soon to know. Any thought?