Possibly pregnant?

Took plan b on the 24th of last month and I haven’t been tracking my ovulation so idk if I was ovulating or already have or if I wasn’t but according to the app I was about to start my ovulation week and was 7% pregnancy rate.

Last time I took plan b I got pregnant but ended up miscarrying 3 months later.

I’ve been getting mild cramps and nausea and idk if it’s cause of the pill or if I could possibly be pregnant and I’m supposed to get my period in 8 days.

Last time I felt mild cramps like this I found out I was pregnant.

Could it be early pregnancy symptoms or period or bc of the pill??