Sims 2 18 hour pregnancy mod

The Sims 2 18-Hour Pregnancy Mod (2 Hours = 1 Real Month)

Sims 2 18-hour pregnancy mod
Have a baby in just 18 hours instead of 3 days!

Do you want a more realistic pregnancy length in The Sims 2? Or are you just tired of waiting 3 days for your little Sim babies to arrive?

Well, now you don’t have to with my 18-hour pregnancy length mod!


I play with a simple aging system where 1 Sim day = 1 real life year. That means every two hours simulates one real life month. With this system, it only makes sense that Sims would be pregnant for 18 total hours – simulating 9 months of pregnancy.

With this mod, your Sims will be pregnant for a total of 18 hours. They’ll get the first baby bump at 6 hours, the second baby bump at 12 hours, and finally give birth at 18 hours.

I’ve play tested the mod in-game and it works perfectly.

How to Install

Unzip the files and place the package file in your Sims 2 downloads folder (found in My Documents). If you need more help installing custom content, please see this tutorial.

Download 18 Hour Pregnancy

Click the button below to download from SimFileshare. Alternate link provided for Dropbox.


Alternate Download Link: Dropbox

Like the idea of a custom pregnancy length but 18 hours isn’t right for your game? You can easily create your own by using this tutorial by Lientebollemei. She also has more tutorials on creating lifespans, season spans, and more so check it out!

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8 thoughts on “The Sims 2 18-Hour Pregnancy Mod (2 Hours = 1 Real Month)”

  1. I don’t suppose there’s a way to choose my own length of pregnancy, is there? I kind of want to make it 9 days, which is 3x vanilla I guess, but it’d be a day representing a month with 3 days per season for the way there’s two full months and one combined month for all the seasons in real life.

    • Thank you so much! I refer everyone who asks to your awesome tutorials on creating different “spans.” They are so helpful!

  2. Hey Cindy, I love all your content! Just a quick question, do you need any EP’s to install this? Or is it compatible with just the base game?

    • I only have the Ultimate Collection, but I believe this should work with base game. I don’t know of any reason why it wouldn’t, but maybe try it out in a ‘hood you don’t care about first.


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