needing advice!

I had sex with my boyfriend last night and we used a condom. I am 17 years old and it was the 4th day of my period. After we had sex we realized there was a hole in the condom, which means he came inside me. I would love to get some advice on what I should do at this point. I would rather not take plan b because of its crazy side effects, but I was wondering when or if I should take a pregnancy test?