How she came to that realization was through a recent loss.
Of course, Plath is referring to her conservative Christian upbringing.
Plath had more to say about the loss, and also shared how Ethan felt in the clip.

I don’t want a kid" (viaUs Weekly).
In 2020, Plath toldPeople, “Ethan and I both love kids.
We’re both from large families, and we would definitely love to have a couple of kids.

I think our ideal would be to have a few of our own and then adopt a few.
She added she wasin therapyto “take positive steps for a better childhood for [future kids].