"The Sims 2" : Trying for a Baby & Pregnancy

Sim pregnancy lasts for 3 days, one day for each trimester. Just like humans, I've found my Sims react differently during the first day of pregnancy. Some woman are unaffected, while others spend more time in the bathroom throwing up than doing anything else.

Symptoms on Day 1
During the first day, a Sim may throw up and appear to be queasy when standing still. Other changes involve motives (bladder, energy, hungry) lowering a little faster.