I did a bit of messing around with this game today, and as far as adult games go, it's pretty well crafted. It's refreshing to see an adult game that's not a visual novel or that has gameplay that's not completely barebones. I don't mean this to sound backhanded, but adult games set an exceedingly low bar, and this one acquits itself well.
But anyway. I enabled pregnancy, and also happened to notice that the number of times impregnated has no upper cap, and is directly proportional to cum, which is a function of how many sex health bars you depleted before climaxing. The first fun interaction is that the Glass of Milk item, which increases cum production, also has the side-effect of something like dectupling pregnancy chance, to the point that you reliably get a kid out of even someone with low fertility. And with high fertility, if you do the minigame well you can get something like a hundred kids a go.
And then I unlocked the Impregnate consumable. And discovered there's no upper cap on fertility, either. And if you use the mating press on Silvia (she mentions she likes positions where she's pinned) your health bar barely moves, while hers depletes every action. So, a few Konami Codes later, I'd set my characters health bar to something like 6000, used Tech-Downs to set Silvia's tech to 0, spammed Impregnates until she was at about 100,000% fertility, and then just... let it run. Took about six minutes for my bar to deplete with turbo mode on, which meant by the end meant saying my guy was "fucking very fast an incredible hihg speed" would me a massive understatement. And when the actual climax was processing, the game made a noise not unlike a demonic choir of contrabass singers before slowing to an absolute crawl.
But to my surprise, it has not crashed. I use present tense because it's still kinda processing the climax. But that also means it hasn't locked up my computer. I was fully expecting one or both, but there's actual safeguards in place. More than can be said for some significantly higher-budget titles.
Should probably put some kind of cap in place though, because this is a touch silly.
Update: It finally finished with 64,000-odd impregnations. Lol.
Update 2: Oh dear Lord there's an item that increases fertility by 500% per use. Dios mio. Incidentally, I now know the game can handle over one million impregnations without crashing, or locking up appreciably more than it already had, so that's something. That also tells me that what's causing the lag isn't impregnations, but probably the sperm graphics, because I don't think that had really changed since I bullied the game last.