Hi, I am a 18 year old woman, I was on the pill then had to come off it because I had a chest infection, I was told it doesn't work with the medicine I took. I finished the pills that day anyway so I didn't cut them of half way through the week. My last period was 15th October I have 5 day periods, I am worried because I haven't had a period yet and it's nearly two months overdue. I am just wondering if my body is confused or i am pregnant, I haven't has sex without a condom. someone please help.