Can I still get pregnant?

I am 14 and my boyfriend is 17, we decided to have sex yesterday, it was my first time.. I stopped taking the pill about nearly 2 months ago because it wasnt doing much for my period.. We had sex without any protection, not even a condom, he did withdraw but I'm still worried if I can get pregnant... Would I still be able to get pregnant even tho we had withdrawal sex?? Thankyou