Something is wrong... HELP am i Pregnant?

Okay.. so im pretty young and i just fingered myself for the first time a few days ago. since then i haven't been feeling good. HELP IM REALLY SCARED. first of all, my butt hole has been itching SO MUCH and i have to squeeze my butt cheeks to make it go away... and since 2 days ago ive been waking up with brown stains on my fingers and on my bed sheets. HELP IM SO SCARED. i rlly dont want to tell my mom its so embarassing!!!! and i couldn't help but think that my belly is getting realyy blotted the past few days ... HELP what does this MEAN??!!! Am i PREGNANT???