Having Babies in The Sims 2 Pets (GameCube): Not Possible

The Sims 2 Pets on GameCube does not include the life-cycle features of the main series. You cannot:

• Have babies / get pregnant
• Age (no toddlers, children, elders)
• Get married (no wedding mechanics)

What You Can Do

• Create & customize Sims and pets.
• Build/decorate homes (single floor).
• Train pets (tricks, careers, skills).
• Play & interact with pets.

For the classic Sims family experience, play The Sims 2 on GameCube (or PC/PS2/Xbox), which includes aging, reproduction, and full life stages.