I am Preganant but I have never had sex?

[xva31]

I am 16 years old. and about two months ago I was getting sick, i thought it was just the flu, but then i noticed my stomach getting bigger, so i bought a pregnancy test just to really see if i was pregnant and it came back positive. please i am so scared, i dont know what to do. i have never had sex i dont know why this is happening to me. This is not a joke either, i know how stupid this sounds. but i am serious here. i need advise. i never had sex with anyone please just give me some advise