No
Bury it or cremate it.
Bruned guinea pigs and dead guinea pigs.
If dead, the guinea pig can be buried (maybe in the garden) as any other pet would be.
It's dead
Well, you cant prevent a still born guinea pig. But you can try to revive the guinea pig once it is born.
Yes.
they sqeak and the other usually sqeaks back
It won't have thrown up - Guinea pig's physically cannot be sick.
Take you guinea-pig to the vet - if they are experienced they should be able to tell if your guinea-pig is preggers or not.
Only if they are dead. Then their main goal would be to place eggs in the body of the guinea pig. The eggs turn into maggots, that then eat the guinea pig.
when your guinea pig has a sign of thinning fur or bald patches or a wet nostrils.