The condom broke

Ok so me and my boyfriend were having sex with a condom and I haven’t been put on the pill yet and it broke and he cumed in my when he was half way and he thought it was on but he has only done it once in me but he asked so I don’t know why he didn’t ask and I have kinda strict parents and plan b you need a Prescription where I live and I don’t know if I could get pregnant because when he did and pulled out he realized and when I stood up it felt like I peed myself but I was actually just has cum and I just ended my period today (July 18) and I try to like clean the inside of my vagina but like what’s my best Option.