Just got the same thing, no idea what triggered it. Hair, eyes, and measurements were the same but for some reason it *just* triggered. No idea what the purpose for pregnancy is outside of limeting certain areas (for the time being), but it does help with a few other roadblocks
That seems what works for me the most consistently.To be specific, I use Jessicas clothes, I have not tried it with the other options, but when i walk by the mirror when i first load in, nothing, but if i walk in with her dress on, it works.
*Assuming you're wearing the cursed gown, just upstairs magic ray to get rid of it.
**Side hint for anyone who reads this, you dont need to *look* like jessica to get her door open.