Its quite unlikely but if you want to be sure she doesn't get pregnant then you need to take better precautions
YOU.HAVE.TO.HAVE.SEX.AND.EJACULATE.IN.HER.IN.ORDER.FOR.HER.TO.BE.PREGNANT!!
Lol ^^^^
Just like she said.
Gosh you have to actually have sex to impregnate someone. Sperm doesn't jump or fly into vaginas. It needs vaginal fluid to swim upstream. She's not pregnant.