(iPod Touch game) Yep, i just lost an adept builder to having babies. and I had the same question about what to give him, chose the knife and now one of my adept builders has a baby! I didn't have an option to not choose.
I've started this game over about 5 times, getting a sense of what will happen and what not to do.
For days, whenever I stop playing, I pause the game. Just to make sure there's no baby making. There is no warning behavior like in the LC, of "going inside" that you can put a halt to. And all the times I've had couples not want a kid! LOL bad as life!