the research of qualitative nature, descriptive type had as objective to identify the obstetric nurses' practices and to discuss their effects during the childbirth, under the women's optics. twelve women had been part of the study, having as instrument of collect of data a semi structured interview. data analysis showed that women recognized the affectionate attitude, the corporal movement and the presence of companion as the main non-invasive technologies used during the childbirth work, in the house. as for their effects, the women realized that technologies favored their internal potentials at the time of making their own decisions. besides, they identified the nurses' practices of the house as determinants for them have not discouraged during the childbirth work. the posture and the use by the nurses of non-invasive technologies contribute to a better perception of the women about her childbirth's process.