Replying to WTF DO I DO?

ok so like last month i went to visit some of my friends at college. we got real shitty, u know the whole deal. went out to a couple parties and by the end of both friday and saturday night i dont remember anything. last week i get a call from this girl saying i got her pregnant and then yesterday another girl called me saying she might also be pregnant. im only 16 and i dont know what the fuck i got myself into? my friends from utah are telling me friends of the girls confirm it and im getting reall scared! do i just never talk to them again and say fuck it? they dont know my real name because everyone was adressing me as smuffy. so ns do u think these girl r just fucking with me or could this be real?