Hi, I had unprotected sex a day after i finished my period and immediately took postinor 1, i had several unprotected sex which resulted in me taking an overdose of postinor (six tablets) in two weeks. 2 weeks after i saw a lump of blood when i woke up in the morning, after that no more blood. its three weeks now and no sign of my monthly flow, and my breast has been swollen for 2 weeks now with no sign of my period.