I'm going to get my nose done soon and my doctor also recommended me getting a chin implant because he says my nose will still appear 'big' since my chin goes a little further in then it should...Do people get both these procedures at the same time? And d

This is very common.  A weak chin can and does make even an ideal sized nose look larger than it actually is.  The chin augmentation is a relatively minor procedure when implants are used although it entails some risks all on its own.  Such as lower lip numbness which can be remedied (usually) by removing the implant and trimming the implant so that it is not pressing up against the nerve as much.