Due Date Calculator

How to Use the Pregnancy Due Date Calculator?

The due date is calculated starting from the first day of your LMP. Since average pregnancies last 280 days or 40 weeks, your due date is counted in this time.

A pregnancy due date calculator is very easy to use. Here is the step-by-step process:

• Enter the First Day of Your Last Menstrual Period : This is the most common approach—entering the date of the first day of your last period into the calculator. This date will be projected back to determine the commencement of your pregnancy.
   
• Enter Average Cycle Length : If you have a regular cycle, it is normally around 28 days. You will want to change this value if your menstrual cycle is shorter or longer.
   
• Calculate : Once you've provided all your information, the calculator will calculate an estimated due date based on the data entered above.

Example

If you got pregnant through In Vitro Fertilization, your due date will be directly connected with the date of transfer, considering whether a three or five-day-old embryo was transferred. No matter how you conceive, keep in mind that your due date is just an estimate.

First Day of the Last Period

The first day of the last menstrual period is an important date in estimating the due date. This is where one begins counting 40 weeks forward in pregnancy. For example, if your LMP was on 1st January, your estimated due date would fall approximately on the 8th of October, some 40 weeks later.

Can I Plan My Due Date?

While you can determine your due date using a pregnancy due date calculator, it is essential to note that you can neither plan nor control this day. The due date is only an approximation of the day of childbirth based on the average length of different pregnancies. Many factors can alter the due date of your baby, including the following:

• Fetal development: Every baby develops at its own speed.
   
• Maternal health conditions: Your general health can affect the length of pregnancy.
   
• Genetic Factors: It could well be in your genes or due to your family history.

Can My Due Date Change?

Yes, your due date can change. There may be a few reasons why this will happen:

• Ultrasound Measurements : An early ultrasound can provide more accurate measurements about how far along your baby is and, therefore, change the due date.
   
• Cycle Variations : If your monthly cycle has not been regular at 28 days, your due date may be reset with your actual cycle length.
   
• Medical Conditions : Certain conditions, such as pre-eclampsia or gestational diabetes, may modify your birth plans and change the estimated due date at times.
   
• You Are Carrying Twins : The most frequent reason for an EDD to alter is probably when your doctor finds out you are expecting twins or multiples. Having many babies might add complications to the experience of pregnancy and delivery. Pregnancies involving twins or multiples tend to have earlier due dates than singletons and must arrive before 39 weeks. Premature deliveries may occur during twin pregnancies.

Will My Baby Be Born on My Due Date?

Many expectant parents wonder if their baby will arrive right on the due date. Babies can arrive:

• Before the Due Date : A few weeks early, generally considered full-term.
   
• On the Due Date : Rare but possible.
   
• After the Due Date : Up to two weeks past the due date is still considered normal.