pregnancy?

i had protected sex about 5 weeks ago and the condom didn’t break to my knowledge and there was no hole in it. i have felt weird since. i’ve been constipated and bloated but i took a test and it said negative then i started my period. i am still bloated and constipated, i had unprotected sex using the withdraw method and then took a plan b pill just to be safe and i still feel the same way. what could be wrong? i haven’t spotted. i didn’t have sex while ovulation i am just freaking out because my mom would kill me..