Sex for the first time

so i had sex for the first time saturday and it really didn’t last long. he didn’t bust or nothing and we used a condom. we just did it to kind of get the experience. anyways wednesday i have an appt to talk to my doctor about getting birth control and i’ve been getting really paranoid lately like what if they check me and i’m pregnant. is it possible to be pregnant if my boyfriend didn’t cum? (i’m 17 btw so you can understand why i’m nervous)