Gravida, para and TPAL: what G3P2002 actually means

If you’ve seen something like G3P2002 on a maternity chart and wondered what it meant, you’re not alone — it’s one of the most searched-for pieces of medical shorthand in pregnancy. The good news is that once you know the pattern, it’s easy to read. You can also decode any code instantly with our gravida & para calculator.

Gravida: how many times pregnant

Gravida (the “G”) is simply the number of times a person has been pregnant, counting the current pregnancy and regardless of how each ended. First pregnancy? That’s gravida 1. Pregnant again later? Gravida 2, and so on. Twins or triplets still count as a single pregnancy for gravida.

Para: how many pregnancies were carried to viability

Para (the “P”) counts pregnancies carried to a viable gestational age, not the number of babies. In many charts, para is broken into four digits called TPAL:

• T — Term births: deliveries at 37 weeks or later.
• P — Preterm births: deliveries between 20 and 36 weeks.
• A — Abortions/losses: pregnancies ending before 20 weeks, including miscarriages and terminations.
• L — Living children: the number currently living.

So P2002 reads as 2 term, 0 preterm, 0 losses, 2 living.

Putting it together: G3P2002

Reading the whole code, G3P2002 means: pregnant three times in total (gravida 3), with two term births, no preterm births, no losses before 20 weeks, and two living children. If the person is currently pregnant, that current pregnancy is the third one — which is why gravida is 3 while only two births have happened so far.

A worked example with gestational age

A chart might read G3P2002 at 7w5d, EDD later in the year. The “7w5d” is the gestational age — 7 weeks 5 days — and the EDD is the estimated due date. If you have a gestational age like that and want the due date (or vice versa), the gestational age calculator converts between them, and the full OB wheel adds milestones.

Why the numbers sometimes don’t add up

A frequent source of confusion is multiples. Twins count as one pregnancy (gravida) and one birth event (para), yet produce two living children — so the “L” can exceed the birth count. Conventions also vary slightly between institutions and countries. If a code looks inconsistent, it’s often one of these quirks rather than an error, but your provider’s record is always the definitive version.

The short version

G is how many times pregnant; P (as TPAL) breaks births into term, preterm, losses and living children. Once you see that structure, any code becomes readable. Try a few in the calculator to get the hang of it.