IPA: /ɒbˈstɛtrɪks/
KK: /ɑbˈstɛtrɪks/
This is a field of medicine focused on the health care of women during pregnancy, childbirth, and the time after giving birth.
She decided to specialize in obstetrics to help women during their pregnancies.
Obstetrics → It is formed from "ob-" (meaning against) and "stare" (meaning to stand). The word originally referred to the practice of standing by or assisting during childbirth, hence the field of obstetrics focuses on childbirth and the care of women during pregnancy.
Think of someone 'standing by' ('stare') to help during childbirth, which is what obstetrics is all about.