Obviously the Sakura scene in 0.8 is meant as a handwaving excuse as to why non of the girls have gotten pregnant (yet?), but replaying as I've been, I've noticed we creampie three of the girls before Sakura ever movies in. Miya and Mayam have no reason to have been on birth control before meeting MC, and considering the sex seemed very unplanned In can't see them having gotten on it just for us/MC just before it. Ayase I can kinda see already being on it, at a push, but the story does act like there's next to no guy or girls around her and MCs age living where they live, so the chances of her meeting someone to have sex with seem low. Thus no reason to be buying and using birthcontroll prior to fucking MC.
Don't take this too seriously, I like the game, if was just something interesting to me that I noticed.
I do really want to see pregnancies happen in the game. It'd be so hot