Hi, I had my last period on February 7th and today being March 4th, I still haven't had my period. I am beginning to get a bit worried, as we did have unprotected sex on the 29th of Feb, but I consider that is my safe period. My period is usually very regular( 26-28 day) cycle. I have been drinking parsley tea. This is really stressing me out as I am supposed to be starting a new job in a few weeks, and I don't want to be pregnant. Should I be worried??