How does the pregnancy due date calculator work?

Add 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28-day cycle). Your menstrual period and ovulation are counted as the first two weeks of pregnancy. This is why a pregnancy ovulation calculator can be helpful to pinpoint the exact ovulation cycle. If you deliver on your due date, your baby is actually only 38 weeks old, not 40.

How accurate is the due date calculator?

This date is just an estimate, only about 4% of babies are born on their due date. Although this tool can give you a roughly estimated date of when to expect your baby, we know all too well that baby.

How will using due date calculator week by week help?

Knowing the estimated date of delivery is an important step in monitoring maternal and foetal health. While you and your family can be prepared for the birth and make the necessary arrangements based on this estimate, it helps your obstetrician provide you crucial antenatal care during different stages of your pregnancy.

Will my baby be born of calculated due date?

This date is only an estimate. It is highly unlikely that your baby will be born on the exact due date, because the birth date depends on a variety of factors. According to studies only about four per cent of infants are born on their due date.

What should I do after calculating the due date?

It is always better to cross check with your healthcare provider about your estimated date of delivery. They may give you an accurate estimate based on a physical examination, including an ultrasound. Even otherwise, consult your obstetrician early in your pregnancy and follow the instructions given to you, to make the best of antenatal care package. Remember that your due date may change by a few days based on how your pregnancy is progressing.

How do I work out how far pregnant I am?

It can be quite difficult to work out how far along you are in your pregnancy. This is because of something known as ‘gestational age’. Your baby is two weeks younger than the pregnancy start date.

How accurate is the due date calculator?

While the due date calculator result often gives a specific due date, it can be hard to predict accurately, since only 4% of births occur on the estimated due date.

How likely is it my baby will be born on their due date?

It is unlikely that the baby will be born on the exact due date calculated since only 4% of births occur on the estimated due date.

How do I work out how many weeks pregnant I am?

You can work out how many weeks pregnant you are by using the pregnancy due date Calendar. But it can be challenging to calculate exactly how far along you are in the process because your baby is 2 weeks younger than the pregnancy start date. This is referred to as ‘gestational age’.

Your Pregnancy Estimate

Your Pregnancy Calculator Results

Based on the information you entered, here is your estimated due date and current stage of pregnancy.

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Your due date and pregnancy week are estimates based on the information entered and may vary as your pregnancy progresses. Your doctor may use scans and other clinical information to assess your pregnancy dates more accurately.

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Understanding Your Pregnancy Estimate

Your estimated due date and pregnancy week are calculated from the information you entered and may be reviewed as your pregnancy progresses. A gynaecologist at Motherhood Hospitals can help confirm your pregnancy timeline, monitor your health and guide you through each stage of pregnancy.

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Whether you are tracking your cycle, planning pregnancy or reviewing a health calculator result, expert guidance can help you understand the next step. Explore Motherhood Hospitals gynaecologists across major cities and choose a location convenient for you.

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