Creator: https://civitai.com/user/xenexia
Pony Pregnancy — Pregnancy & Postpartum Anatomy Model NSFW & SFW
A fine-tuned Pony checkpoint focused on pregnancy and postpartum abdominal morphology . It’s designed for clinical/realistic depiction (not stylized anime) with expressive tagging to control the shape and features of the stomach. In addition, postpartum conditions are captured for a consistent before, during and after transition, which includes wrinkling, overhang, diastasis, popped navels etc.
What's new in v1.0?
The latest release is much improved on overall visual fidelity and responsiveness to prompts. There are also a lot more images in the data set non-pregnancy related which helps to ensure concepts are not lost or overridden if they aren't well represented in available pregnancy imagery.
Key Tags
Important
Phase-locked mandatory control with two anchors:
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phase_pregnant - use to generate pregnancy material
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phase_postpartum - use to generate postpartum material
Ethnicity
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chinese ,european - more refinement to come
Pregnancy
Trimester control with:
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first_trimester, second_trimester, third_trimester
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Tip: control overall size with more refinement by weighting phase_pregnant between ~0.5 - 1.0
Textural control with:
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gigantic belly
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stretch marks
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flat navel
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slit navel
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deep navel
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outie navel / huge outie navel
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linea alba / hyperpigmentation
Expanded Attire control with:
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shirt overhang
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dress overhang
Postpartum
Postpartum taxonomy for nuanced outcomes:
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pp_deep_creases - heavy wrinkling
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pp_crepey_skin - subtle loose skin, noticeable affected skin texture
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pp_panniculus- belly apron, skin that hangs and folds over the groin area
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pp_hidden_navel- navel occluded by loose skin folding over
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pp_frowning_navel - downturned/hooded look
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pp_flat_navel- navel that didn't return to an innie and is flat along the stomach
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pp_diastasis_recti - ab separation causing a soft squishy belly
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pp_dr_mild/moderate/severe- severity of the ab separation
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stretch marks - future improvement will differentiate between fresh stretch marks and faded out ones
Recommended Settings
Sampler: DPM++ 3M Karras / Euler A
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Each has slightly different characteristics, use your personal preference
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With Forge, I have found DPM++ 3M to give the most realistic appearance and skin texture, but does add a bit of fuzz like you'd get from amateur photography (as is most of the dataset out of my control). Euler a will give you sharper results, but slightly less realistic
Steps: 25–35 (Euler A) · 28–40 (DPM++ family)
CFG: 4.5–6.5
Prompt Guidelines
Captioning rules:
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Prefix every pregnancy prompt with: phase_pregnant, trimester_X, X navel, ethnicity ...
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Prefix every postpartum prompt with: phase_postpartum, pp_X, pp_Y, ethnicity ...
Note: Existing pregnant tag is unnecessary.
Belly size:
The belly size is very flexible, but takes a little bit of tweaking to get it perfect. As mentioned above, you can control overall size with more refinement by weighting phase_pregnant between ~0.5 - 1.0 in the prompt. First trimester in some cases may still show a larger belly, but you can reduce it with the phase reduction.
As an experiment, I found that gigantic belly gives much larger pregnant bellies than what is currently in the dataset with realistic properties still retained. Try this for triplet + bellies.
Please also check out the metadata of the images provided above on this model.