Responses needed urgently!!!!

ok so last night me and my boyfriend were doing stuff, basically I gave him a blowjob and he came. I'm pretty sure we cleaned it all up. Then like maybe an hour later we decided we wanted to try and see if he could fit his dick inside me - so we didn't have sex but he just tried to put it in a bit. I sucked it a bit again before he put it in and the end of it tasted kind of salty - could it have been pre - cum? And then he put it in afterwards but it was literally like half of his dick and it was in for probably a min and a half in total.

But now I'm kinda worried that I could get pregnant cus we didn't use a condom - I know we were stupid but I just really need urgent advice please ladies, is there a chance I could get pregnant?????