dumb reason for birth control?

so i've been having casual friends with benefits sex with this guy.. i have feeling for him even though he doesn't for me but every once in a while we have great amazing sex.. the wettest i've ever been. i literally cry it's so good. well he always says i have good pussy and last time we had sex he said multiple times "i want to cum in you so bad" and he specifically said "you gotta get on birth control or something because i want to cum in you bad" and stuff like that. neither one of us ever had that experience. he never came in a girl and nobody ever came in me. i kind of want to experience it bad like he does. is that a dumb reason to be put on birth control? can i just take it for a month and then stop? i don't feel like dealing with the side effects i just want it once then i want to drop it. is that okay? please give me advice and experience! thanks