I'm jealous that my friend is pregnant with her 3rd kid. I also have 2 kids and I want a 3rd, but husband says we have to wait until we are financially able to support a 3rd. But I really want another baby...

Talk it out with your husband and understand his point of view too. If household finances are not sufficient/too stretched to support another child adequately, perhaps it would not be the right choice. It would compromise your entire family's quality of life.