Google "care of guppies" you will find heaps of good information to read. Here is not a suitable place to provide all the relevant information you require in order to care properly for a gravid guppy.
It is normal for a pregnant guppie to have a reddish interior on her Travis spot
No.
A mid-wife
no fish should be pregnant before a year
Take her to the local vet and they'll take care of the puppies.
You don't. You just let nature take its course.
you will not be able to take care of your own child
no because the betta will fight, hurt or maybe even kill the guppie
No. Your ability to get pregnant does not mean you are capable of taking care of yourself. It actually just means the opposite, you don't know how to take care of yourself and a baby.
Yes, But you need take care of yourself.
Very difficult
Yes, but use in moderation and drink plenty of fluids. take care