No. Hugs won't get a girl pregnant.
Depends: If you are close with the guy: Maybe, don't jump the gun. If you like him, drop hints. If you are not close: Probably. In fact, if he's been smiling at you, then yes.
If he hugs you, he likes you. If he's single and hugs you, he's in love with you. :)
they think of you only as a friend or they are cheating on you
SHE LOVES HIM!
Absolutely no. You will be fine.
He miss the girl
This girl may dislike a guy for admitting feelings or mayby she might have for the guy.
one arm hugs!
that means that he is intrested in you and hugs his girlfriend till he says bye and gets together with you
usually if a guy kisses a girl that means that they have feelings for that girl
The guy is attracted towards the girl, but is not yet confident that she will like his kissing her.