Am I being paranoid

FH

After I had sex December 13 an the condom broke a lil but not that much and he ain’t nut I took the plan b and it delayed my period and my period did come a week after but it was a real bad one like heavy cramps but then after my period was over. I’m still having stomach aches and back aches also stomach growling an still aches I don’t think I’m pregnant tho idk what it is idk how to explain it