Plan b

could be totally normal plan b can alter your period make it late or come early and causes spotting, however not to scare you but implantation bleeding can also come in as spotting best way to know is i would say i’m a week or two take a test if you don’t get a formal period.

I have that happen too it’s stopping the ovulation and throwing you off

This can be a normal experience as others have mentioned, I took a plan B twice within 3 days not fully knowing how it worked, and yes, it does mess with curbing ovulation, I had my period about 6 days after taking it.