Pregnancy Due Date Calculator

While it’s true that most pregnancies last 40 weeks, other factors at play will determine your pregnancy’s due date. Most expectant mothers don’t realise that both menstrual and ovulation periods count as the first two weeks of pregnancy. Many won’t be aware of their pregnancy until their first missed period, and by that time they could be up to five weeks in. That means that simply estimating nine months from the day you take a pregnancy test isn’t going to calculate pregnancy week, and, even so, factoring in a few weeks here and there for ovulation won’t either.

Unless you can pinpoint exactly what point of your ovulation cycle you were in at the time of fertilisation, it’s difficult to know how far along you are and what date you’ll meet your baby. Luckily, our EDD calculator can help.Using both the date of your last period and the length of your regular cycle, or the exact date of conception, our pregnancy calculator will quickly work out your estimated due date, tailoring it accordingly for longer, shorter, and average cycle lengths.

Ultrasound and period wheel are other ways in which you can calculate pregnancy week. Keep reading to know more about different pregnancy calculators and which one to use to estimate your due date correctly. 

Once you’ve calculated your due date, you can get a better idea of when to expect your little one – and start to plan accordingly.

If you haven’t done so already, one of the first steps you should take is to schedule an appointment with your doctor, who can confirm that you're pregnant with a blood test and physical exam, and also help you establish a more precise due date.

At each following prenatal care appointment, you'll be examined to determine the size of your uterus, and to monitor your little one's development. Pregnancy milestones such as hearing your baby’s first heartbeat and seeing your baby via ultrasound will be a thrilling part of these checkups. Along the way, depending on what is observed, your pregnancy due date may be adjusted.

While your doctor will be able to advise you best, there are still plenty of things you can do as soon as you discover you’re pregnant. Explore the rest of Pampers India website to find out more.

A pregnancy calculator makes it easy for you to calculate your pregnancy week. By simply feeding some basic information, like the first day of your last menstrual period or your conception date into the pregnancy calculator, you can get an estimated due date (EDD). 

Today, there are several traditional methods and new-age due date calculators through which you can figure out when your baby will make a grand entrance. 

Once you’ve calculated your due date, you can get a better idea of when to expect your little one – and start to plan accordingly. If you haven’t done so already, one of the first steps you should take is to schedule an appointment with your doctor, who can confirm that you're pregnant with a blood test and physical exam and help you establish a more precise due date.

At each following prenatal care appointment, you'll be examined to determine the size of your uterus and to monitor your little one's development. Pregnancy milestones such as hearing your baby’s first heartbeat and seeing your baby via ultrasound will be a thrilling part of these checkups. Along the way, depending on what is observed, your pregnancy due date may be adjusted.

While your doctor will be able to advise you best, there are still plenty of things you can do as soon as you discover you’re pregnant. Explore the rest of the Pampers India website to find out more. 

Your estimated due date (EDD) is when you can expect your baby to arrive. Knowing your EDD is critical, as it helps you plan and welcome your baby better. However, note that it is just an estimate and only 4% of babies are born on their EDD.

Pregnancies generally last for 40 or 38 weeks from conception. So, you can calculate pregnancy week by counting 40 weeks or 280 days, from the first day of your last menstrual period (LMP). Note that most OB-GYNs calculate a baby’s due date using a pregnancy week calculator by LMP. 

Another method through which you can calculate pregnancy week is with the help of the conception date. Note that conception date is not a preferred method by many medical professionals as it is often inaccurate. This is because knowing the right conception date is tricky. As they say, ovulation isn’t a perfect science. It doesn’t always happen on the same day each month. It can happen earlier or later than usual, which means that it isn’t a reliable way of predicting your due date. 

If someone conceived through in vitro fertilisation (IVF), they can calculate their due date with the help of the IVF transfer date. Note that typically, the embryo transfer happens three or five days after egg retrieval and fertilisation. If the transfer happens after three days, your due date will be 263 days from the day of the transfer. On the other hand, if the transfer takes place five days later, count 261 days to know your due date.

Also known as a gestation calculator, a period wheel is a small calendar that helps you determine your due date once you feed in your last menstrual period (LMP).

Note that OB-GYNs use the period wheel to figure out details like trimester dates and when you must take certain scans and tests. 

Did you know that the timing of an early ultrasound can predict your due date more accurately than the LMP or any other method? Some women have irregular periods, while others might not remember their last menstrual period. That is where an ultrasound scan comes into play.

Typically, an OB-GYN during the first trimester would measure the crown-rump length, which is the measure of the foetus to get an accurate gestational age or due date. Then this date is compared to the date that is calculated using the LMP. If both dates are within five days of each other and the pregnancy is less than nine weeks along, then the due date is calculated with the help of a pregnancy week calculator by LMP. If the difference is more than five days, then the ultrasound method is used. 

If a woman has had HIV or is HIV positive while she is pregnant, ultrasound estimation during the first trimester is the preferred method to calculate her estimated due date rather than the last menstrual period (LMP) method. Calculating the due date of the pregnancy is even more critical because some cases may require early delivery to prevent the risk of perinatal transmission of the virus. 

Wondering how accurate the due date provided by your doctor is? The accuracy of the due date depends on how early on you visit your obstetrician-gynaecologist, or OB-GYN and how predictable your periods are. This is because the due date is more accurate early on in the pregnancy than in the later stages. Note that the due date is never the same and rather the delivery happens in the same week or the week before or after. 

Typically, your healthcare provider will let you know your estimated due date after carefully learning about your last menstrual period and first ultrasound and using the EDD calculator. Note that it is very rare for the due date to change after your first ultrasound scan. Remember that knowing the gestational age, i.e., how far along the pregnancy is, helps to monitor the growth of the baby and know when to perform certain tests. 

To conclude, due dates are not set in stone. You get a rough estimate of when the baby will arrive using a pregnancy calculator but most babies often don’t stick to the schedule and either arrive a few days early or later. So, all the mama-to-be out there, don’t stress if your little one decides to arrive early or is fashionably late to the party. 

Ultimately, knowing your due date using a pregnancy calculator will help your healthcare provider figure out the dates for all the important milestones and developments to ensure that you deliver a safe and healthy baby.