My period ended 5/25. had sex night of 5/30 more like after midnight which was already 5/31 took a Plan B pill the night of 5/31. Had sex again the night of 6/3 and morning 6/4. on 6/6 in the morning after using a bathroom I wiped myself up and the paper was reddish. Is it the effect of Plan B or could it be implantation bleeding (which I read can occur after 6 days) Should I take Plan B still? Is it possible to get pregnant from the first intercourse even after taking a Plan B? I am suppose to get my period 6/25 (it never comes on the exact days it always varies) I am not much concern from second sex to get pregnant but I wanna make sure that the sex I had on 5/30 and I took a pill afterwards will not cause pregnancy.