How many kids..

My husband and I have 5 children together (working on baby 6) and we get flak for it on occasion. I honestly would love to have at least two more. We're getting close to getting touch on money, but I think we could make it work. My parents help our here and there when they can. My siblings don't mind donating money or time whenever they can as well. I don't really see the problem. A few of my friends have stated there, I guess concern, about our family. And I'm perhaps starting to have 2nd thoughts. What are yours?