<s>[INST] Hi. yestersady I had unprotected sex with my girlfriend n she took unwanted 72 within 5 hours at that night bleeding was started but today there is no bleeding at all. Is there any chances of getting pregnent. She is also dealing with pcos. Please advice. [/INST] No need to worry if already emergency contraception is taken. Emergency contraception is very effective in preventinhg pregnancy.However it us advisable to use condom if you are not keen on planning a child. </s>