Want another baby but dh doesn't

Constance
So I want another baby. Most of ya'll are going to think I'm crazy. We are already raising 6. My husband and I have one together, I have one from a previous marriage and we have 4 others that were supposed to be his, but his ex did a DNA test and come to find out the twins that were supposed to be his aren't and there's a good possibility that at least one of the other 2 aren't biologically his either, but they're still ours and we have custody. We can financially afford it and are able to take care of everything...without government assistance. His reasoning is he's scared it will be too much on me, but I can handle it. Our youngest is 4 months so I want to wait just a little bit longer, but I know I want one. Am I wrong???