Depression?..need a friend or two?

I always feel depressed and want to cry when I'm alone or not talking to anyone...idk what to do. I do have a bf and he helps whenever we are together... but other than that..he's focused on his own life and that's how it should be... Idk if its depression or what..? Also have mood swings and I'm NOT pregnant. I do take BC...but I always remember feeling like this even when I wasn't taking it... Any help.?