ngl though, elianna and ash having mc WAS irresponsible, completely agree with Tobias here, "shit" would have been my reaction too to eli's pregnancy news, considering mc gets kidnapped and goes through a very traumatic experience because of what they are.
as for which path to choose it's definitely save familiars for me. Plushie is, well, a toy, sirius has plot armor due to being ashlyen's daemon. Familiars though? Now they need help. Even if we don't look at this from the meta perspective and although the choice IS hard, since we get to bond a little with sirius, it's a choice between saving lots of familiars instead of saving just one for me, aka sirius, sorry big cat, love ya✌😭
"Shit," was Elianna's reaction too. Ashlyen opted for "Holy shit."
A pregnancy wasn't in the cards. In fact, it was inconceivable. Half-blood births are so rare and the percentage so low.
But it happened, and yes, Ashlyen and Elianna decided to be selfish and give themselves that right.
Like others before them and others after them.
The only difference is that Mc is half elf. A rarity given Amandil's stranglehold on her people.
As for the Familiars, Sirius in your place would have done the same. One life to save many. The choice is simple. It's a state of mind shared by Sirius and Ashlyen alike.
So perhaps you have more in common with your father than you might realize.