A Due Date Calculator is a tool that estimates a pregnancy’s estimated delivery date. It is based on the idea that a pregnancy lasts 40 weeks, or 280 days, beginning with the first day of the last menstrual period (LMP). The tool considers the LMP date and determines the anticipated due date by adding 280 days or 40 weeks.

Due Date Calculators are typically predicted using an established formula called Naegele’s rule. This rule is a method used to estimate the expected due date for a pregnant woman based on the first day of her last menstrual period (LMP). While it is important to note that Naegele’s rule is an estimation and not an exact science, it provides a reasonable approximation for determining the due date.

Naegele’s rule assumes that a woman has a regular 28-day menstrual cycle and that ovulation occurs on the 14th day after the start of her LMP. It calculates the due date by adding 280 days (or 40 weeks) to the first day of the woman’s last menstrual period.

● Understand the expected due date: Based on the information you gave, the calculator will provide an estimated due date. This is the halfway of your pregnancy, around 40 weeks from the beginning day of your last menstrual period. Remember that this is an estimate, not an exact forecast.

● Use it as a guide: The projected due date is used as a guideline for planning and preparation. It can help you manage your calendar, tell your healthcare provider, and plan for maternity leave or other important events.

● Track your pregnancy progress: Once you have an expected due date, you may use it to track the development of your pregnancy. Regular prenatal check-ups and ultrasounds will be scheduled by your healthcare provider to examine the health of you and the baby.