Background: Pregnant women often ask about sexual activity during pregnancy and the consequences curred during sexual activity. Sexual activity can occur during pregnancy, but the frequency is very varied, decreasing along with increasing gestational age.

Aim: This study aims to know third-trimester pregnant woman's sexual function. This study was performed in“Siti Fauziah” Midwifery Health Care.

Method: The study design used descriptive analysis in which researchers were eager to describe the sexual function of third-trimester pregnant women.

Results: Results obtained 12 respondents (46.15%) in the category of low sexual function, nine respondents (34.61%) in the category of moderate sexual function, and five respondents (19.23%) had a useful sexual function.

keywords: Function of Sexual activity, Pregnancy