Missed Birth Control

Hello all! I’m kind of freaking out. I’ve been on birth control for the past 6 months, and I’ve been so good about taking it everyday, except for I missed my first dose last night. I take my pill every night around 7:00, I went to go take tonight’s (Saturday’s) and noticed I hadn’t taken Friday’s. I took both Fridays and Saturday’s at once tonight as directed through some research. I had sex 2 times without a condom with my boyfriend about 5 hours ago (not knowing that I had missed last nights dose). He didn’t cum in me, he pulled out both times, but I’m still worried. What are the chances of getting pregnant? I think my best bet would be to get plan b in the morning, what do you think? Any guidance/advice is well appreciated as this is new and worrisome for me. Thanks in advance