Two days late?

So my period for the past 4-5 mo tha have been back to Norma due to plan b I took awhile back...

Fast forward it’s been two days I haven’t

Got my

Period and I’m a little

Concerned. I know I know there’s always a chance when unprotected but me and him did it a few times this past month. I been inducing my

Period for the past 3 days by taking a whole lot of

Vitamin c... had little cramps n sore boobs on and off.. took a test n negative.. please help me