I m 22 and had protected sex with a partner on the 15th of October. We used a separate condom each time he penetrated me. However, between acts we removed the condom(s) and had oral sex. He ejaculated near my collar bone. I was worried about an unwanted pregnancy and hence took an emergency contraceptive 48 hours after the said act. I have irregular periods and my gynaecologist has prescribed Deviry 10mg 5 days a month (21st day of my cycle to 25th day.First day being first day of bleeding). I took this from 8th of October to 12th (Though, I didn t stick to a fixed time 10pm one day, 8pm the other and the like). It s the 21st of October and I still haven t gotten my menses. Is there a chance I could get pregnant? How should I proceed from here on.