I have a somewhat similar problem. I tried to have my two sims engineer a baby together but the option is greyed out. When I hover over it, it says “The household is currently full” I’ve tried everything but it’s still greyed our, does anyone know what to do or what it means? My sims are in a Utopian future, they have 3 other sims at home (in the past), they’ve engineered a baby before, I only brought the two of them to the future, they don’t live in the community center (they have a future home), they have enough money, anything I’m missing??