14 & unprotected sex w/o birth control ?!?!?!HELP

Ev
okay, so im 14 & i took someones virginity last night. it was really good ! i just am scared i could get pregnant. he said he didnt cum & i believe him , i just know u can get pregnant by precum & he said he doesnt know if he did. We didnt use a condom & im not on birth control & i cannot tell my mom , but i really need a plan b or something! what do i do ? i cant have kids !!!