Ive been on the birth control tri-cyclen for about five months now for the first few months i wasnt taking them properly, meaning i kept missing one and then taking one every other day when i missed a day ... this month i took them correctly except for the mishap of taking one late. The second to last row i believe the third to last pill i had unprotected sex with my boyfriend he didn't ejaculate inside of me but im suppose to get my period tomorrow.. im worried i wont *( i had some bleeding two days after conception)