July 9, 2024

Belly in pregnancy depends on the number of babies

With this mod a belly size of your pregnant sims depends on babies number! It has many versions for each trimester and offsprings count.

11.03.2025 UPDATE: Added Spanish translation link (Thanks, magalyrc!)

06.01.2025 UPDATE: 
Added cheat compatibility with Wicked Whims. It resets belly in positioning and animations so now you can open cheat menu and run update belly cheat!
(Thanks TURBODRIVER for helping me <3)


If you thought that sims takes into account the number of children during pregnancy, I hasten to disappoint you: the belly is affected only by the constitution. There's good news too - I've written a mod that fixes this!

Now at each trimester of pregnancy, when it becomes visible (including the delivery stage), the pregnant belly adjusts to the number of children.

This is a steady state, meaning you can go to another area with your sim, send her somewhere, go into CAS - the belly won't change.

A couple exceptions: if you do a sim reset, it will reset. If you change the number of children (for example, through the CC), the belly will not automatically update. For such cases, I added a cheat code that will put everything back in place:


 

(Update pregnant belly Nth trimester)

Basically, if suddenly something reset, then calmly use this cheat.

Keep in mind that when you switch to a new trimester, the belly is updated within a few seconds (usually 2-3). This is to make sure the sims don't overwrite the belly size after working off this mod.

Plus, I made several versions so you can choose a more appropriate size for your needs. I wrote more about the modifications below in the installation section.

Check the mod status HERE

REQUIRED 

lot51 Core Library 

TRANSLATION 

Russian translation by me

Spanish translation link by magalyrc

CONFLICTS 

I spent most of my time writing this mod without conflicts. So this mod really doesn't cause any error when working with other mods including Command Center, Relationships and Pregnancy Overhaul and Realistic Childbirth.

However! If you are using the Relationships and Pregnancy Overhaul mod, you need the additional file SonozakiSisters_Belly_Size_Injector_Lumpinou_RPO

Also! This mod does not conflict with LittleMsSam's Pregnancy Overhaul Belly Part mod in the sense that it does not cause an error. But it will overwrite the values of the mod from LittleMsSam.

Because of this, I wrote the same four belly versions as LittleMsSam, taking her values as the basis for a one-child pregnancy. That is, for a one-child pregnancy, the same values as LittleMsSam will be used. If you need those values, use one of the versions below. In addition to her four versions, there is my basic one (I recommend using it) and one based on EA values.

INSTALLATION 

Place the files SonozakiSisters_Belly_Size_Based_On_Babies_Count_Version, SonozakiSisters_Belly_Size_Injector_EA, SonozakiSisters_pregnant_progress_script and SonozakiSisters_Belly_Size_Injector_Lumpinou_RPO (when using the "Relationships and Realistic Pregnancy" mod) together and no deeper than one subfolder in Mods! You can only have ONE version of the SonozakiSisters_Belly_Size_Based_On_Babies_Count_Version file

HOW TO CHOOSE BELLY SIZE VERSION

DOWNLOAD (SimFileShare, Free)

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Comments (24)

M
Mary J · August 13, 2026

Are we suppose to have the EA belly size injector and the RPO belly size injector at the same time

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SonozakiSisters · August 13, 2026

Yes

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Travis Persinger · July 8, 2026

Have a somewhat complex mix: Female Hybrid Alien/Simbot with the "Daughter of the Easter Hare" trait from Nisa's Wicked Perversions Mod. Issues: After "laying her clutch," belly does not return to normal and I'm unable to find the cheat to reset it. I've tried using Shift+Click on several different Sims and the cheat doesn't appear on any of them. Does "you can open cheat menu and run update belly cheat" mean there is a command I can type into the Ctrl+Shift+C command line?

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SonozakiSisters · July 8, 2026

There is no difference between command line and the cheat interaction. I don't know actually how does Wicked Perversions work, and I'm going to release the remake of this mod soon, so I will not maintain and update this one

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Jill Johansen · June 19, 2026

Hello, Just wanted to say I love this mod, but I am having a slight problem with it. It seems to be working fine in most cases, except with alien abduction pregnancies, which do not update automatically. I play rotationally and the aliens have been busy, so... They update with the 'update belly' cheat you included, so I'm glad you included that, but I have had to keep LittleMsSam's mod installed and put yours in an override folder so my abducted guys don't default to EA values, and that works fine if they only have single babies, but then one guy got knocked up with twins, and he's only getting the single values unless i manually update. I did some testing and if you set a male sim to be able to get pregnant, it does work, it's only if the pregnancy resulted from an abduction that the problem arises. I do have Aliens Reloaded, and thought it might be due to that, since i had problem with that one conflicting with mods to disable the pregnancy walk, (again, only for abducted sims) but I tried removing it and the bellies still failed to update properly. edited to add - OH right, and it does initially update properly, when they switch trimesters, but if i load the game or switch households, it reverts. I have pregnancies set to be longer, so this is actually not at all uncommon

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Simfanatic · April 23, 2026

Hi, I use RPO but only two files, the M00 core library and M19. Do I still need to use the Lumpinou injector package instead of the EA version?

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SonozakiSisters · May 6, 2026

Hi! No, you don't need it in this case

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Wildcat · November 24, 2025

Does this mod work with PandaSama's Realistic Childbirth mod?

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SonozakiSisters · November 24, 2025

Yes, it works. There is no point only to have multiple mods that affect the belly size but her mod doen't touch this part of code

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Ny Cooozy · November 23, 2025

Hello I wanted to get this is amazing and really good i paid to be a member the $3 when i want to download from simfile its not showing and im not able to access it at all?

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SonozakiSisters · November 23, 2025

Hi, I don't have paywall mods, the link leads to the SFS folder where you can download the files. It's strange that you can't access it. Try it again with clearing the cash. Maybe you have a SFS issue

M
Midnight Galaxy · October 28, 2025

Hi! I love this! Looking forward to using it, but I have one question first - is it compatible with LittleMsSam's pregnancy Overhaul? No biggy if its not, just want to ask so I know if I am removing that mod or not first before putting yours in my game!

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SonozakiSisters · October 28, 2025

Hi, you're welcome! There is no point to have several mods that override belly size. However, you can use other modules such 'pregnant sims can do more'

h
heresanameforyou · July 15, 2025

Is this still compatible?

k
kamilahzzz · July 10, 2025

hi! im a bit confused with the translations. It the default English or Russian?

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SonozakiSisters · July 10, 2025

Hi, the translation depends on your game settings. All of my mods have both Russian and English translations so if you're playing on the English or Russian version you will have the proper translation

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TNTComics · July 3, 2025

As the husband of a wife who had triplets, I give this my stamp of approval!

A
Adeon79 · May 16, 2025

I pretty sure I have every pregnancy mod out there....Except this one, do you have a known list of the mods this one DOES conflict with? I know right now I have the littlemssams bigger than EA belly part and pregnancy overhaul mod, are either of those two going to mess with it or make the size lesser than what they would be without this mod?

Y
Yawey · June 24, 2025

Literally what i'm trying to figure out! did it conflict?

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Simslegacy · February 26, 2025

I am so excited to find this 🤩😍! I used pregnancy variations until it broke, I cannot wait to have something like this back in my game - thank you!!!!!

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SA LA · January 9, 2025

Does this conflict with Pandasama's Childbirth mod?

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SonozakiSisters · January 9, 2025

No, neither Childbirth or RPO

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TheOne · January 7, 2025

Do you think this mod would conflict? modthesims.info/d/681621/karthmanter-s-pregnancy-variations-length-removed.html

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SonozakiSisters · January 7, 2025

It will, they both basically do the same feature modifying the same part of code. That's cannot be done otherwise