Hay folks so o wrote up my idea for a possible Vix storyline way back but heres a quick note on how her pregnancies could work.
Vixenatrix Birth Plan Idea (Not-Cannon)
Pregnancy
-Takes 5 Days to Announce Vix is Preg.
-Takes 15 Days for Vix to lay her Eggs.
-Takes 5 Days for Eggs to Hatch (During which she will not have sex).
-Once the Eggs Hatch it will take 15 Days for the Dragonlings to Mature. At this age they can go hunting for Meat & Treasure. MC can collect from a pile that is left in the corner.
-5 Days after full Maturity they will leave Vix's Lair permanently to seek there own homes. This makes space for more babies to be born & exist in the Lair.
Decenser: Like with Shakala, if you do not have the Decenser Patch then "DragonDaughter" will not even be born.
This is only if Tink does decide to add a DragonDaughter, of course.