Just to be clear and end my question. You said that what I thought is right, that when I try for a baby with a woman, the numbers of Sims in my household will automatically increase, even in the very beginning of the gestation. If I gonna have a triplets, the household will increase...
article: https://www.ign.com/wikis/the-sims-4/Twins_and_Triplets cheat (not sure if using a cheat would mess up a triplets achievement, though): https://youtu.be/PC577X8lTQ0 SheriGR ☕ – I don’t work for EA. XP –for helpful comments | Accept as Solution –help others find ...