If I remember correctly, they start building their nest first.
yes a baby hamster can die and your female hamster,im sad to say, probably will pass away.
She is going to have a baby.
you will have to ask the person who sold you the hamster that is the only way.
If it has a bunch of baby hamsters
if it is fatter than normal.
You can know that your hamster is pregnant when It's tummy is big and that she bites or makes a sound when you touch her tummy. I know that because my hamster ChowChow had a baby. You know when its coming out when she breaths fast.(when it comes out do not touch it or make a big sound or...It will eat her babies!) Im not telling a lie. And don't look at it.
I think your hamster is feeding the baby..but maybe you doesn't realise it or doesn't know it...Hamster are nocturnal, they sleep in the day and wake up in the night.http://wiki.answers.com/Are_hamster_a_nocturnal_animals#ixzz19q8JCj2v
you don't know you're going to get a baby
If it is notably bigger.
No, probably not. A baby hamster is like a normal hamster, only smaller, and a baby. But my hamster used to bite me a lot and I didn't get infected. so, no you won't.
Cuz they're freaks.
It can be challenging to predict when a baby hamster will die, but signs of illness include lethargy, lack of appetite, difficulty breathing, and abnormal movements. If you notice any of these symptoms, it's important to seek veterinary care promptly to give your hamster the best chance of recovery.