maria got only 1 child so far and is bit grindy, there is way to cheese it when you are having sex in office - no sex yet after 1st kid
https://f95zone.to/threads/simple-days-v0-16-1-mega-lono.61893/post-9883923
but who knows, game is bit messy with this update (dev making changes with prevous and current update), myself am not sure if would find will for this grindfeast again, i would wait on fix, there are too many issues with too many ppl at this point, if nothing else all the broken saves, fix has to come