Parity is often recorded as 4 numbers: Number of term deliveries (after 37 weeks) Number of premature deliveries (> 20 and < 37 weeks) Number of abortions Number of living children Thus, a woman who is pregnant and has had one term delivery, one set of twins born at 32 weeks, and 2 abortions is gravida 5, para 1 - 1 - 2-3.