In my congregation we had several women who never were married, and were available after Armageddon. There was also couple who did not had children and the man died, and the wife remained alone for all these years. She must be in her mid 80's. Most of these women were born between 1935-1950, and they kinda sit together without family waiting for big "A" to get married and had children. I feel sorry for them as they wasted their life for nothing. In my generation, there was only one woman who decided to be single and not having any children. I also knew couple who could not conceive a child, the woman was very devastated as she went to many treatments and had several miscarriages.
On the other hands there are JWs who have many children so they can milk welfare and use it free housing, financial support from the state, and they have plenty of time not working but doing a field work. Win win situation.