I’m so worried!

I’m 16, i have safe sex with my 17 y/o bf, we use a condom and i also take birth control.

HOWEVER

a few days ago i missed a day of my pill, and today i gave him a blow job then later on we had sex without a condom for about 30 seconds before realizing he didn’t have one on, put one on and continued. is there a possibility of pregnancy from the precum/ chance there was still semen ??? i’m so worried guys