Due Date Calculator

How does the pregnancy due date calculator work?

Your due date is determined by a simple calculation – Add 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28-day cycle).

Note that your menstrual period and ovulation are counted as the first two weeks of pregnancy. If you deliver on your due date, your baby is actually only 38 weeks old, not 40.

Need to know : On average only 5% of births take place exactly on the estimated due date. Most are born within a week either side of the estimated due date. A normal pregnancy can last anywhere between 38 and 42 weeks.

What is the due date and what does it mean?

Your due date is used as a guide for checking your pregnancy’s progress and the baby’s growth and age. Doctors often use more than one method to set the due date. 

Remember that the medical term for “pregnancy due date” is EDD, or estimated date of delivery — which means the date your doctor gives you is only an educated estimate.Since every pregnancy is unique and your baby will come when it’s ready. Be sure to talk to your doctor & clear all your doubts & queries about your due date.

As part of your antenatal care, your doctor will also offer you a dating scan that will give you a more accurate date for the birth of your baby.

What are the other ways to find my due date?

There are several ways for your doctor  to figure out your due date

The Size of your uterus – This will be noted when your initial internal pregnancy examination is performed.

An early ultrasound – This  can more accurately date the pregnancy.

Is it normal to go beyond my expected due date?

Yes, it’s very common. Most babies arrive between 37 weeks and 41 weeks of pregnancy, usually within a week on either side of their expected due date.If your pregnancy lasts longer than 42 weeks (294 days), it’s called a prolonged pregnancy. Between five per cent and 10 per cent of women would have a pregnancy that naturally lasts this long.

Can my due date change?

While it’s certainly no cause for concern, your doctor may change your due date for a number of reasons as your pregnancy progresses.

Early Pregnancy Symptoms

The earliest pregnancy symptoms (like sensitivity to smell and tender breasts) may show up as soon as a few days after conception, while others (like spotting) might appear around one week after sperm meets egg. Still others (like urinary frequency) often appear about two weeks or so following conception. That said, pregnancy symptoms crop up at different times in different women; some experience very few if any of these symptoms until weeks into their pregnancies.

The most common early signs and symptoms of pregnancy might include:

• Smell sensitivity
• Tender, swollen breasts
• Darker, bumpy areolas
• Fatigue
• Bleeding or missed period
• Nausea
• Frequent urination
• Bloating
• Raised temperature

Be sure to consult with one of our doctors for your prenatal checkup.