The being who being-in-the-world … becomes mother of a second child.

Becoming mother of a second child, as a parental transition phenomenon, poses a challenge to reflection in Nursing. This theoretical study intends to present a reflection on the being who being-in-the-world becomes mother of a second child. It is based on Heideggerian phenomenology and nursing thought. The text is organized around two axes: Heidegger's conceptual contributions and nursing thought. The Heideggerian ontological dimension, aligned with the humanistic presuppositions of Nursing, contributes to unfold the meanings of life experiences and broaden possibilities of caring of the being who being-in-the-world… becomes mother of a second child. Concomitantly, the access to the experience of women who being-in-the-world become mother of a second child enables widening comprehension of this phenomenon, which will certainly impact nurses' being-present in their daily care.