I had unprotected sex on feb 26 i had just finished my period on the 24 i took the plan b pill about 4 days after having unprotected sex and about 4 days after that on march 7 i bleed the same lenght as if i was on my period. I want to know if that was considered my period or not since then i haven't had my period could i possibly be pregnant? I've taken the plan b pill before and never bleed or had any problem with my mentrual period.