Freaking out please answer! orthodontics question! chains & braces!?

omgomgomg, ok well a few weeks ago i got a chain put on my top braces because one of mr front teeth are too far to the right. so the last couple of days i've been realizing that my front tooth is loose! is this normal? i don't want my tooth to fall out! please answer! i called my mom and she said that she's gonna call the orthodontist when she gets home but i'm so worried. i just got that stupid tooth, (it was stuck in my gums and they had to lasso? it and pull it down), and now it's coming out again! i'm literally crying right now. =( please answer, thanks!