Through an ethnographic research on activism of humanized childbirth in Buenos Aires in the 2010s, was recurrent the reference to motherhood. In their modalities of public intervention activists mentioned phrases such as: “Sovereign motherhood, my body, my decision”. A form of self politicization, specifically of the reproductive body. This suggests links with the so-called second wave feminisms. However, some of them pointed out relevant disagreements with feminist activists, especially with the “historical” ones, as they said. Thus, a relationship of alterity "we/them" was formed. The principal problem between them was the exaltation of the maternal body that the labor activists proposed. This article deals with the uneasy relations...