I'm on a combined birth control pill and had unprotected sex. The day I had unprotected sex I was also around 18 hours late taking my birth control pill. I took the morning after pill about 40 hours afterwards as a precaution. Now I'm on my 7 day break from my birth control and haven't had my period yet (going into my 4th pill free day). I'm worried and maybe this is contributing to the fact my period is delayed? Can anyone shed some light as to my chances of being pregnant? My partner and I are nowhere near ready for a baby.