am i pregnant??

so last monday (dec 14) me and my boyfriend of over a year had sex twice. the first time we did what we usually do where we fuck for a while then i finish him with a blowjob, but the second time he pulled out and came all over my stomach and my pelvis. we're both lowkey freaking out bc my period was supposed to come yesterday and it hasnt and he claims that when he came on my torso last week that it dripped down the side of my vagina like on next to outer lip things so hes afraid that i might be pregnant because he read online that if semen gets anywhere near the vagina it can cause pregnancy...