Nope. You're stomach probably just didn't agree with what you ate. In my first trimester I tried to eat some beef stew my husband had made. It was good but my stomach didn't agree and I spit it up a few moments later. You'll be fine. Just try to take it easy on the greasy foods.
No it won't hurt your baby , but if you start to get dehydrated go to the ER to get IV fluid .