double pill

k • most uncomfortable with self
So I've been really good at taking the pill the past two weeks and the other night for the first time I let my boyfriend finish inside me ( which btw was amazing ) and so shortly after I decided to just pop two more pills just in case, I was told it can kind of act like plan b, and so now I'm back to one pill a day, should I be worried about being pregnant? I'm not worried but maybe I should be?