Morning sickness meals and snacks?

Surprise for me, I'm a little over a month pregnant. I'm excited, but I already feel terrible. The morning sickness has been pretty brutal starting this week. I have really only been able to eat toast and mashed potatoes without feeling absurdly nauseous. I thought PB&J would be great, and I was very wrong.

For anyone who has had a baby, what foods were you able to eat?