Hi doctor, I used postinor 2 five days after unprotected sex with my bf, I started to bleed two days after which lasted for six days, geting to the date am supose to to menstruate, menstruation bleeding started with severe pain, lot of blood coming out with some particles like thick blood, I don t realy know what is happening, don t know if am safe or if am pregnant or if the drug has injured me badly cos the blood is coming out much, what should I do?