HELP!!!!!!!

Me and my boyfriend had sex first with a condom. So after a while he was about to one and he took it out. He when to take a shower and when he came back. We had sex again but this time WITHOUT a condom and when he was about to come he took it out immediately. He smokes weed with tobacco like every day. So is there a change to end up pregnant. He didn't finish inside me tho. Please advice me.