nulligravida

Nulligravida is a medical term used in obstetrics to describe a person who has never been pregnant. The word combines Latin nullus, meaning none, and gravis, meaning pregnant. In obstetric history terminology, a woman's reproductive history is summarized using gravida (the total number of pregnancies) and parity (the number of pregnancies carried to a viable birth). By this convention, nulligravida indicates a gravida of zero.

This term is often contrasted with primigravida, which refers to a woman in her first pregnancy, and multigravida, a woman who has been pregnant more than once. It is also useful to distinguish nulligravida from nulliparous, which describes a person who has never given birth to a viable offspring. The two terms address different aspects of reproductive history: pregnancy occurrence versus birth.

Clinical relevance: Nulligravida status may be mentioned in fertility histories and reproductive counseling. It does not by itself indicate fertility problems, but it serves as a baseline classification in studies of fertility, contraception, and prenatal care planning. In demographic and epidemiological contexts, nulligravida is used to describe individuals who have never conceived.