HELP!

Cl
So I'm taking bc (for 3 months) but last week I forgot to take one and the day after my boyfriend put his penis inside me me for 2 minutes but he didn't come inside and I just kept taking the pill in that day but I just took one. Can I be pregnant? 
It was 10 days before my period and after that I've been feeling really stressed and nervous about that because I'm all the time thinking that I can be pregnant.