Pregnancy Butler-Calculation

Application description:
This app can easily and accurately calculate the due date based on your menstrual cycle or fetal movement date.
There are two main calculation methods:
1. Calculated based on the last menstrual period: the month of the last menstrual date plus 9 or minus 3 is the number of months of the expected period; the number of days plus 7 is the date of the expected period.
For example: Ms. Zhang's last menstrual period was March 13, 2008, and her due date is approximately: December 20, 2008.
Ms. Li's last menstrual period was May 28, 2008, and her expected date of birth was approximately: On March 5, 2009, the date of the last menstrual period can be calculated from the first day to the 280th day.
2. Calculated based on the fetal movement date: If you can't remember the date of the last menstrual period, you can calculate it based on the fetal movement date.
Fetal movement usually begins 18-20 weeks after pregnancy. The calculation method is as follows: the primiparous woman is the fetal movement day plus 20 weeks; the postpartum woman is the fetal movement day plus 22 weeks.