What term refers to a woman who is experiencing her first pregnancy?

The correct term for a woman who is experiencing her first pregnancy is "Primigravida." This term directly refers to a woman who has been pregnant once or is pregnant for the first time, combining the Latin roots "primi" meaning first and "gravida" meaning pregnant. It is a specific designation used in obstetrics to differentiate first-time pregnancies from subsequent ones.

Understanding the other terms can provide clarity: "Multipara" refers to a woman who has had two or more pregnancies that have reached a viable gestational age, and "Nullipara" is used for a woman who has never given birth. "Granulosa" is unrelated to pregnancy; it typically refers to a type of cell found in the ovaries, thus not applicable in this context.