Hi, I got the contraceptive patches a few days ago, but I didn't wait til my next period begins to apply it on my skin as advised, instead I applied it on Feb 18th, then I had unprotected sexual intercourse with my bf yesterday Feb 19th, would the patch still work? What is the chance of me getting pregnant? Today is Feb 20th, and my period began on Feb 1st, usually my menstrual cycle is 29-30 days.