question: Hello doctori took deviry 10mg tablets for 5 days and 3 days later i had unprotected sex. till now(on the 4th day) i did not have any periods. thinking that i will be safe as withdrawal bleeding is going to happen in a day or two i had unprotected sex. i have polycystic ovaries FYI. what are the chances of getting pregnant. should i take emergency contraceptive pills? plz advice.