will i get pregnant ?

i’ve been seeing this guy recently and i’m not on any birth control and he doesn’t use condoms but he pulls out every single time we have sex. i’m kinda paranoid i’m going to get pregnant because we’ve been having sex like 1-4 times a day for the past month and idk if i should be concerned or not. should i be? i want to go on birth control but i have bipolar disorder and i’m scared of it altering that or making it worse and i don’t even know where to go to get birth control. idk i’m nervous