Men just assume that since we bare children that we should be the ones to get fixed. When in all reality, times have changed!!! Snip snip snip!!
Besides it should be a two sided decision and neither person should make the decision on their own. If you still want more then he should keep an opened mind. I am going through the same thing. I want one more and he isn't sure. I have a boy and he has a girl. Now we are having a girl together!