There is no cheat that guarantees a baby's gender in The Sims 2 — the game determines gender at conception with a 50/50 random roll. However, you can significantly improve your odds of welcoming a daughter by forcing multiple births. Twins and triplets each roll gender independently, giving you much better statistical chances.
Press Ctrl + Shift + C to open the cheat console, then enter these commands while your Sim is pregnant (before birth):
boolProp testingCheatsEnabled true — Enables advanced cheats.forcetwins — The next pregnancy will produce twins (often one male, one female).forcetriplets — The next pregnancy will produce triplets (even higher chance of at least one girl).Ignore these common misconceptions — they have no effect in The Sims 2:
Save → Impregnate → Enter forcetwins (or forcetriplets) → Birth → If no girl, reload and repeat. Or, embrace the surprise — a baby boy is just as adorable!