@mny648704 the Sims in the game can all be customised by you. So the trailer isn't really of that much importance. I'm not sure why it would impact "health" but your game is your game and all gameplay decisions are made by you. Each Sim can be customised in Create a Sim to allow pregnancy or to disallow pregnancy as it has been for some time. It can be accessed via the Customisation panel in the top left hand corner. Sim households often join the game with a pack but can be easily deleted by a player or edited in CAS.
So the trailer is just showing you the game's varied and diverse possibilities. It's a demonstration really and that's all.
