help? please idk what to do

Um ok so. My partner and I recently engaged in unprotected sex. Him experienced me not only my second time ever. And first time we used a condom. This time I asked him basically begged him to put one on and he's like no no you'll be fine. My problem is I myself am not sexually educated and have no clue if he came inside me but I'm worried if I could get pregnant or what I should do.