When Should I Expect My Period Given My Irregular Bleeding And Negative Pregnancy Test After Taking I-Pill Twice?

I got my periods on 2 jan had ipill on 12 after intercourse then had withdrawal bleeding on 16 for 2 daysagain had ipill on 20 n got light bleeding on 25 jan but dint get my periods on till today ...i have a regular cycle n pregnancy test is negative when should I expect my periods