Well, that's a very tight timeframe. I'd say that a good portion of the available passives and titles will require more than 60 in-game days of grinding. The devs would need to lower their criteria.
Having said that, I really truly do not understand the pregnancy kink.
if the game takes about 60 days in-game to complete, pregnancy isn't needed but if you design your game to be grindy and takes awhile to complete then maybe make it easier to mod or made it to the final product so more people will buy your games based on their "Kink",
it doesn't matter if you can understand one of the other person kink but for me it's a sign of commitment and a bad/good life choices for MC to take, and also if MC do all those kind of thing and don't have to see their consequences i think it's not really a good game,
you get raped ? = mind break
you did it witout condoms ? = you get kids
you did not submit ? = get badly injured
it just that i don't like it when you do it and it's a dud, it's a waste of energy, just lust and pleasure is kinda boring, i need consequences and fil my kink that's all.