Unmother

How we lace away The hours interminable, Intricate and Pale, we nuns And all such unmothers of men;

Source: wiktionary

There is experimentation with sexuality, monogamy and nonmonogamy, mothers and "unmothers," parenting by groups of bilogical and/or fictive kins, living in separate households and coparenting, etc.

Source: wiktionary

So there are mothers and unmothers, and while neither choice is the easy one to make, motherhood is at least the comfortable one.

Source: wiktionary

One day modi mother and unmothered. True twinnes in birth and death ; together drown in this sad stream.

Source: wiktionary