Actually, yeah, it would not bother me at all to have some babies before e.g. elf freedom is secured. There are all kind of threats and worries in the real world, you know, and waiting until everything is safe isn't an option.
However… I’m less interested in a Family Simulator and more interested in having some of the Harem sporting full bellies and swollen breasts with darkening nipples! It could be a little like Android, where she can set her breasts to a preferred size, or how the girls can wear my chosen outfits. At least for now. And that need not wait for a narrative resolution.
That said, I can of course respect your vision and narrative requirements, disappointing as this is for me as a bit of a pregnancy fetishist!