A confirmation of your pregnancy is merely peeing in a cup.

They test it quite similar to the urine test you took at home.
If you can take a folic acid supplement, you should be able to take prenatals. They are only vitamins.
As far as the morning sickness goes... I don't know much about that. I got sick at the end of my pregnancy and couldn't eat anything with any fat in it. It was awful.
Women have various different things they try for MS. Like soda cracker, ginger ale, they have suckers you can get that are supposed to help...
What not to eat - soft cheeses, deli meats, a lot of fish (you can still eat fish, in moderation). There isn't a lot to this whole pregnancy thing really. Eat well and be healthy. Other than that, your life is going to be the same as before