Disappointing really, creampies and such in ANVs without real consequence detracts from the kink factor IMO. The idea with AVNs is fantasy, role-play and such, so IMO its critical to have such systems and routes and then the next critical part is, why have it and its just implied. LI = pregnant...means nothing, unless you can see the visual changes over time (not years like some games please) and you can also see the character personality changes, hormones and such. Not sure why developers often shy away from this, its a fun, kinky, technically realistic and exciting addition to any game really.
Keep it optional for those who don't like it but Im VERY sure most people would look into it. Just like many people HATE NTR (less these days IMO), I believe many have come to dip their toe into it. NTR is real fantasy you don't act on in real life (most probably dont) but can here just like impregnation. The point is, that people maybe don't want to actually do it in real life, be that because of the responsibility for making and raising a kid, being cucked, losing a partner or whatever, but give them the optional fantasy of it, they will mostly go check that content because its kinky, there is that allure, risque and more content!