What does G2P2 mean?

• A. Two pregnancies and two miscarriages
• B. One pregnancy and two births
• C. Two pregnancies and zero births
• D. Two pregnancies and two births at twenty weeks or more

Answer: (D)

Gravidity and parity are shorthand for a woman’s obstetric history. Gravidity (G) counts how many times she has been pregnant, while parity (P) counts how many pregnancies have progressed to at least viability, which is about 20 weeks or more gestation.

If someone is described as G2P2, that means she has been pregnant twice and, in both pregnancies, carried to at least 20 weeks and delivered. In other words, both pregnancies reached viability and resulted in a birth.

This is different from scenarios where pregnancies end before viability (abortions or miscarriages), which would not increase the parity count. The phrase “twenty weeks or more” is the threshold that defines a birth for parity. So the statement that matches G2P2 is two pregnancies with two births at twenty weeks or more.

The other options don’t fit the definition: one pregnancy with two births is not possible, two pregnancies with zero births would be G2P0, and two pregnancies with two miscarriages would not reach viability to count as births.