I've been on birth control for almost 3yrs. I use to take Yasmine for a couple of months then switched to Ocella because it was cheaper. My birth control was expired on Feb. 1,2010. I am now waiting for my birth control to be sent...it seems like i'll be missing more than a few days with out my birth control. So far one day with out it! but that's not all...after my period was done I had sex the next day...am I at risk? Even if I did take my last pill that day...?