Chances I’m pregnant..?

I’m breastfeeding, 7 months PP, still on the mini pill. I forgot to take 2 pills from this months package, other than that I take my pills everyday at the same time. Lastnight me and my boyfriend had sex without a condom (we’ve been using condoms and BC since I had my baby). We used the pullout method lastnight. Should I consider taking plan B or should I be okay since I’m consistent with my BC (except those 2 days) ?