<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, from this years january i was having my periods in an 13 to 16 days gap, where as i used to have it in 28 days gap. Last month i had unprotected sex on the 4th day of my periods. A week later i had sex again but this time i took an emergency contraceptive pill. Bt still im not having my periods till now where 16 days is already over. Am i pregnent?  <response>: Hello, Unprotected sex during period is very much safe. Taking emergency pill within first 24 hrs gives protection more than 95. Though it depends on ovulation time. Emergency pill can delay your period for 1-2 week or more. You need to check your pregnancy status by one blood test for beta-ChatDoctor. Please consult with your doctor regarding this. Take healthy diet, avoid stress, maintain genital hygiene, practice safe sex and use regular contraceptive pill instead of emergency pill. Good luck. 