Scared and stupid!

I just started a new birth control this month after being on a different one for about a year. The first week or so this month I messed up on taking the pills at the right time/everyday but got back in track pretty quickly. I very briefly had sex with my boyfriend without a condom but we quickly stopped. How likely is it that I’m pregnant? I’m usually really responsible about all of this I just had a moment of stupidity. I’m really nervous!