[strobe999]

how would you specify which woman you mean in a same sex couple?

i am personally not in need of this term but think its an especially good fit in this specific context.

context being the defining factor, i would usually not appreciate explicitly reducing a person to their reproductive organs like this but in a discussion about reproduction it actually removes ideology from my point of view.

[Izkata]

Not that term for sure. Both of those women have eggs. The descriptor you're looking for seems to be "pregnant".