"Hi, I missed the last two active pills of my birth control pack (I'm on trinessa combination pills). I never took them and just let my period come instead. I then meant to then start my next pack two days earlier than I normally would, but forgot (I usually start my pack on a Thursday so I meant to start on Tuesday instead). When I realized on Thursday morning, I took two pills then. On Friday I took pills again. My boyfriend and I had unprotected sex late Friday night and again over the weekend. How likely is it that I am/will become pregnant? Should I purchase the plan b pill or is it way too late at this point (I'm writing this five days later)