That’s a fascinatingly horrible storyline but it doesn’t really make sense. Regina’s older than Snow by 6-12 years depending on your estimates of their ages. Why would she have a baby with Leo 7 years AFTER marrying Prince Henry? And we already know that the baby in question is Zelena, who is most definitely NOT Snow White, and who IS older than Regina by her own telling. Also um marrying your elder daughter to your younger daughter’s baby daddy is NOT OK.
Keeper of Belle's Gold magic, sand dollar, cloaks, purple FTL outfit, spell scroll, library key, copy of Romeo and Juliet, and cry-muffling pillow, Rumple's doll, overcoat, and strength, and The Timeline. My spreadsheet: https://drive.google.com/file/d/0B6r8CySCCWd9R0RUNm4xR3RhMEU/view?usp=sharing