ok dude you are pretty degenered so i'm lol =)
but well as this is a part wich is really important to some charachter, for example lin and ashley who would love to have children and give them a good life that they havent been abble to have, and especially with the fact that ashley want more than 10 of them
well it will more likely being added as "end game content" or something like that cause of the weight it would have in the story, cause story have a lot of weight in this game wich it's why you can't add thing like that from the beggining especially because it's not most porn game, as you would have surely discover that at least half ot the interest is the story behind the charachter =)