That pregnancy calculator with dates (maybe you’ve seen it with your gynecologist) is a gestogram, and it is used to determine how many weeks of pregnancy you have and your possible due date.
The Pregnancy Gestogram (also called pregnancy wheel or gestational disk) can be used to give a lot more information about your baby and pregnancy, like:
- Average weight of the baby according to gestational age
- Average size of the baby according to gestational age
- BDP (biparietal diameter) of the baby according to gestational age
- Baby femur length
- Weeks of pregnancy
- Estimated due date
And a lot of related information, including a week by week content with details about you and your baby’s growth.