Pregnancy Calculator

November 12, 2012

Pregnancy Calculator

Pregnancy is one of the most blissful times of a woman’s life. While many women are excited about the new arrival, they are anxious about it as well. They use the pregnancy calculator to estimate their approximate due date.


Pregnancy calculator is used to compute the weeks of woman’s pregnancy. It can tell you about the date of your ovulation, and a possible date of the arrival of the baby. It will also help you understand the progression of your pregnancy. You can track your symptoms and milestones, and compare them with other women, who are in a similar position. You can feel assured that your baby is developing normally, or alert your doctor if you notice something different or abnormal. It will also help you plan your work and other responsibilities ahead of time. Hence, more mothers-to-be are using the pregnancy calculator today than ever before.

Many doctors and experts also use the pregnancy calculator to track a woman’s pregnancy. A doctor, for example, will use this method to calculate the 20th week of your pregnancy, at which point you would be recommended to undergo an ultrasound examination to check for the normal growth and development of the baby.

How Does It Work?

The calculation is based on the first day of the last menstruation and the date of conception. You can find a pregnancy calculator online for free. You just have to enter the date of your last menstruation period and the days of your menstrual cycle for the results.

The first day of your last menstrual period should be about two weeks before your actual day of conception, or the day of ovulation during the month. Although, this is the day you got pregnant, most people start counting 40 weeks from the first day of the last menstrual period. This is because there is no way to know the actual date of ovulation. The pregnancy calculators follow this principle as well.

Drawbacks of a Calculator

You should remember that a pregnancy calculator is just a rough estimation of your due date and stage of pregnancy. It is not a medical confirmation of the due date, which is usually done with the help of an ultrasound machine. Its purpose is to estimate dates for important milestones and the baby’s approximate gestational age during the pregnancy.

You should also note that the calculator works well only in women who have a regular menstrual cycles, and can establish a pattern for the first day of their menstrual cycle.

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