I"m 16 & pregnant ,but i don't know who the father is? Should i give her/him up for adoption?

No no no. I'm not saying i'm a whore or slut or anything. I've never even had sex...willingly. About 3 months ago i was visiting my folks in Alabama my no one was home so i took a walk. It was about 8:30 when i left the house( i know it;s late but i lived there when i was 6-8 so i trusted the neighbourhood) Then all of a sudden about three guys came out of the woods and attacked me. When i came to i was in the hospital. And now i'm pregnant.