Help please

I took take action pill (the same as plan b) and I felt fine for a few days, besides some of the side effects mentioned on the box and now 4 days later I’m bleeding 🩸 and I know it said I would probably have either an earlier or later period. I just want to know how long it’s gonna last. Because I just got off my period last Saturday and my mom might get sus that I have my period again (I’m 17)