So on July 6th my boyfriend ejaculated in me and it was around my ovulation period. The same day I took a plan b and i started back on my birth control patch (ortho evra). Lately I’ve been having really bad cramps the past couple of days but no period I even had the little acne breakout like I do before my period comes. However, here I am a day late for my period. I know that the patch can stop your period if you don’t take that off the 4th week. Any advice please?