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Steady Pregnancy Progression (21.08 in Public) (Patreon)

Published:
2026-07-31 15:00:06
Edited:
2026-08-21 07:16:55
Imported:

Content

Mod description HERE

DOWNLOAD (SFS)

RPO Compatibility Injector HERE (if you play with this mod ofc)

Files

Comments

Craig

Just downloaded it can’t wait to try it out

Rachel

my sim is going to have to get pregnant now!

Lorene Conaway

Immediately adding :) Great work as usual!

SonozakiSisters

Mine already is, that's why I decided to make this mod :D

Kitty

Can't wait to try this out ^-^

MzNekaSimz

This is so cool! Can't wait to try it out!

Secret Shay

Just downloaded it. I use RPO so do I keep the EA injector that's in the zip folder or only use the RPO injector?

BeeLovedsims

i had to become a Member, this looks so amazing and i love this little detail for my game. The little things makes the difference :) A Big thanks, keep up the great work

Tristen O'Brien

I have a mod that makes the max belly size 200% (100% is way too small for twins and triplets) could you make a version with the max size able to go to 200%? I loved your other pregnancy mod and was able to make the adjustment to the .package but I’m not very good writing .t4scripts

SonozakiSisters

Hi, it's impossible. You can "set" whatever value you want, but the size is strictly limited by the game code: self._pregnancy_progress = clamp(0, value, 1) if value is not None else None The function clump forces the value to be no lees than 0 and no bigger than 1 And even if it wasn't such function, any game sliders can't be bigger than 1 anyway. The pregnancy progress operates the sliders, so it's not possible on any code level

Nesquick113

Love that you included belly size guides for those of us already using LIttleMsSam's mod. Thanks for putting in the effort to make it compatible with so many mods!

SonozakiSisters

You're welcome! It was essential, as I understand many people play with such mods, including myself

heidi (Team de luniversims.fr)

https://www.dropbox.com/scl/fi/i49nre1tavs72qjwp90n6/1_SonozakiSisters_Steady_Pregnancy_Progression_1.1_traduction_fran-aise_luniverSims.fr.package?rlkey=xbxfolz6q1mwr3n2b42j23l8r&st=3d9czlaf&dl=0 Hello, here is the French version to include or attach to the mod according to your usual procedure. This is a free and goodwill service. I’ll be posting an article soon on our French forum to spread the word. Thank you for sharing this—this mod is awesome. Take care.🌼​ -- https://luniversims.fr/links/link/931-progression-harmonieuse-de-la-grossesse-steady-pregnancy-progression-un-mod-de-sonozakisisters/

Chrissy Wood

This mod is LIFE-CHANGING!!!! It has always bothered me so much that sims' baby bellies change so drastically from one trimester to the next, especially the difference between 1st and 2nd trimester. This has made the game SOOOO much more enjoyable!! THANK YOU!!!!

SiimplyJessica

so i just want to confirm here, i don't have to input any of the belly value numbers myself from the google doc? i just have to download this and the injectors and then make sure the pregnancy duration is set long enough in game to be able to see the progression, which is done on MCCC or WW?

SonozakiSisters

That's right! The preset already has required values, you only edit them if you want it

Tayla

Hey, I've been having trouble with the pregnancy duration! No matter what number I put in to multiply the base game duration by, each trimester is always 14 days. I've tried deleting the mod and redownloading, changing households, terminating pregnancies and restarting them, yet nothing has worked. I'm at a loss and could really use your help please as I love the idea of this mod and really want it in my game !

Tayla

MCCC and Wicked Whims

SonozakiSisters

When you're setting the duration ranges, which values the mod is showing?

SonozakiSisters

I mean, there are several values on the input dialog form. I need all these values

Tayla

I have experimented with a few different pregnancy durations and min duration values but in one household no matter what the values were the trimesters were always 14 days. My most recent household started off with either 7 or 8 days per trimester but the most recent pregnancy has been different. I changed my Base game duration to 40 days, min duration value is 0.8 so duration of 3 trimesters should be 32 days, total pregnancy duration should be 42 days. I started a pregnancy using MCCC on Thursday at 8:45pm game time, the following Saturday (9 days later) the Eating for Two moodlet came up saying 2nd trimester in 9 days so all the 3 trimesters plus the hidden pregnancy stage are 9 days each so 36 days and then even adding the labour period that doesn't add up to 42 days.

SonozakiSisters

Have you checked the duration ranges? I explained in the post that every pregnancy is unique and has its own duration. If you open these settings, the mod will calculate all these values. I want you to open these settings for the offspring count of current pregnancy and write me all values

SonozakiSisters

Also, it would be much easier if we talk on a platform where you can attach the logs and screenshots. Do you have any to share? I can delete your comment right after that Patreon sucks because I can write to paid patrons only

Tayla

I gave you the durations above. My sim is pregnant with one baby, the base game pregnancy duration is 40 days, the current min duration value is 0.80 so after multiplying the duration of three trimesters is 32 days and total duration is 42 days.

SonozakiSisters

My gmail is sonozakisisters@gmail.com so you can write me there yourself

Tayla

I have a Tumblr account but haven't used it in years, I'll redownload the app. How do we find each other on there?

Tayla

I've sent you an email :)

SiimplyJessica

And the other question that I forgot, you said that the longer you stretch out the pregnancy duration, the smoother the transition to the belly sizes will be. Is that just the case with your base recommendation? Or are all versions of the belly sizes, smooth transitions from beginning to end? Does that make sense? The way you explained it, you make it seem as if only your recommended base is going to actually change a little by litte everyday smoothly, and you made it sound as if the other versions of belly sizes, only grow to the three specified sizes in decimals, during pregnancy, except during hidden stages and in labor. Let me know if I didn't make sense. Also I just must commend you in getting back to me, you have no obligation to do that, you're for the most part making mods for free and accepting monetary donations, so I appreciate anytime you take to answer questions from me or anybody else, because a lot of creators out there just don't respond. Even though I know there is no obligation to respond, I just really appreciate it. Ps (I know it's mostly because they and you get annoyed or just plain bombarded with thousands of questions). ᥫ᭡♡

SonozakiSisters

If you mean daily changes, it's true for all templates, they all work the same ;) But they have unique sizes as trimester changes. And the smaller the difference between belly size of current and next trimester, the smoother the belly changes per day. So, you should decide, which trimester transitions are more important to you to be smoothly, and which ones don't really matter. I mean, I don't like how big the belly even on the 1st trimester. So I lowered the size at the start of visible pregnancy, and also lowered the final size. But the 2nd trimester doesn't matter so much for me as the beginning and ending of pregnancy look good. While other players are totally OK with the EA sizes but just want to lower the 1st trimester belly size. And so on. I hope this explanation helps, but you're free to ask more questions ofc And thank you, I want to help and I'm happy it's appreciated <3

JA Simmer

I appreciate! 🫶🏻

Jill Johansen

hey, just realized i am having a problem with this. It had been working, previously, and I haven't changed anything, but I have my pregnancies set to 18 days, and I have been playing with my current sim for a week, so she should be going into labor any time now, (rotational, pregnancies for my played households get paused when not active, so it was unpaused when i started playing the household) she started out at the beginning of the third trimester and it finally dawned on me that she did not look any larger than before. I looked at the log file, and it just keeps setting her to the base third trimester size. What is especially odd is that there are some other pregnant sims in my game, such as Bella Goth at the moment, and it lists her size as a value in between first and second trimester, so it is working for her. And as mentioned it DID work previously, I had another sim pregnant with twins and it progressed fine. *edit just checked Bella and she is not between values it turns out, she is having twins.

SonozakiSisters

Hi, can you send me the screenshots and the log file after using the sonozaki_sisters.pregnancy.get_belly command (Ctrl + Shift + C) to sonozakisisters@gmail.com ?