Make a Baby Have a Birthday in "The Sims 3" - Click on the phone in your Sim's home.
Click on the "Throw a Party" option.
Make a Baby Have a Birthday in "The Sims 3"
Choose "birthday party" in the list, set the time for the party, select the dress code from the drop down menu and choose the Sims you would like to invite.
Make food to serve at the party, call to order a pizza or set up a buffet table so your guests have something to eat.
Click the "Buy" icon in your control panel on the bottom of the screen.
In "Sims 3," when your character is in a relationship, she can have a baby. However, a baby in this game can be difficult to take care of, especially if your Sim is career-minded. Each Sim has the opportunity to age up before her time comes. This also applies to babies in the game, though each Sim can only use this trick once. If you would like to skip the baby stage, you can do so in just a few easy steps. - by eHow
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