pregnancy?

okay so i has my period at the beginning of feb. took plan b on the 10th like 3 days after my period. on the 16th i had a 5 day period which mine is usually 7 days. haven’t had a period since and idk if plan b messed up my cycle but i should be starting any day now. i’ve only had protected sex since i took plan b.. i’m rlly scared but ik i’m probably just overthinking🙄 thoughts to make me less stressed?