You realize that the more children you have, the less room in YOUR life for your husband. I know, I have 3 children, and they ALL come before me, which means pretty much there is NO place for me in my own marriage. I bet your husband feels like a third whell much of the time.
As for what to read, usually "The Proper Care and Feeding of Husbands" is a good source. For LD women that want to fix their marriages, it lays out the strategy that MUST be implemented ( Dr. Laura says what most experts say, she just cuts to the chase).
Even if your husband IMPLEMENTED one of the man books like NMMNG or Deida or Wild at Heart, it still comes back to YOU, YOU are responsible for the relationship, not him. Heck NMMNG tells us guys to STOP working on those things that we can not control, and that is specifically the relationship.
