<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello doctori took deviry 10mg tablets for 5 days and 3 days later i had unprotected sex. till nowon 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.  <response>: Hi, I guess your concern is about chances of getting pregnant after unprotected sex in spite of taking Deary. Firstly, my straight forward answer is YES. There are chances of getting pregnant. Because deary is given for the with Chat Doctor. So I want to tell you not to worry as every problem have solutions. As you told that you have Polycystic ovary. It also causes delay in menses. With the above discussion, you can try out my suggestions:1. First to do urinary pregnancy test by a kit, it is easily available in your nearby medical store and do it. If it is negative, then dont worry, menses will come with or without medication. But if it is positive then you can visit to nearby gynecologist, heshe can help you.2. If you are still having irregular menses then your treating gynecologist also helps you. I hope the above things are informative enough, useful n helpful for you. Let me know if I can assist you further. 