A lot of you are saying that, makes sense actually, not only by turning on and off the "enable pregnancy content" but by the option of simply not engage in sex at all with some LI, he would need to have two renders for each girl he intended to show pregnant and not pregnant, for both cases, if we had no option but to follow all girl's paths, since that's not the case... well, I don't know much about developing a game, but that sounds like it would increase his work considerably.
One can always hope tho