Pma Calculator Baby

What is PMA?

Post-Menstrual Age (PMA) refers to the number of weeks since your last menstrual period. It's a key metric used by healthcare providers to track fetal development and estimate due dates.

PMA is calculated by counting the weeks from the first day of your last menstrual period to the current date. For example, if your LMP was January 1 and today is March 1, your PMA would be 10 weeks.

How to Calculate PMA

To calculate your baby's PMA, you need to know the date of your last menstrual period (LMP) and the current date. The formula is straightforward:

For example, if your LMP was January 15 and today is March 15, the calculation would be:

This calculation helps healthcare providers monitor your pregnancy's progress and ensure your baby is developing normally.

PMA vs. Gestational Age

While PMA and gestational age are related, they are not the same. Gestational age is determined through ultrasound measurements, while PMA is based on the last menstrual period.

There can be a discrepancy between PMA and gestational age, especially in the early stages of pregnancy. Ultrasound measurements are more accurate for tracking fetal development.

Healthcare providers typically use both PMA and gestational age to monitor pregnancy progress and ensure the baby is developing normally.

PMA Chart

The following chart shows the typical stages of fetal development based on PMA:

This chart provides a general overview of fetal development stages. However, every pregnancy is unique, and individual development may vary.