What is wrong with my 14 week old?

My daughter did that when she got formula and nothing terrible was wrong with her. When they are still so young and used to milk, its sometimes difficult to digest because the milk varies in its thickness (I think it starts out thick and ends watery or the other way around) but formula is just there in its thickness. My daughter would sometimes just spit up a ton and then be fine. I think their stomachs are just adjusting to the world. If you are still worried, your doctors office probably has an advice line you can call and ask a nurse. Sometimes new moms just need to hear from an expert that all is well! :)