Ok so I am 18 years old. I have had the same 26 day cycle since I got my period at age 11. The only time it changed at all was while I was on birth control pills. I have not been on birth control for the past year. After I stopped the pills my cycle went right back to 26 days on the dot. Last month it was 12 days late. It was pretty light also. I have been having a lot of unprotected sex. Should I be expecting my period 26 days from the day I was supposed to get it, July 12, or the day I got it ,July 24. I am so confused. Any answers would be helpful