Please allow the Pregnancy Due Date calculator a few seconds to load if you’re on a slower internet connection or reload the page if it doesn’t load.

Due Date Calculator

About this calculator

The due date calculator uses the first day of your menstrual cycle and the average menstrual cycle length to provide three important pieces of information for dating your pregnancy:

  • Probable ovulation date
  • Fertility window (lmost likely period for conception, 5 days before and 2 days after your ovulation)
  • Estimated due date (approximately 266 days from conception)

How ovulation and fertilization work

Around two weeks after your period, your body ovulates and your ovaries release one mature egg. The egg can be fertilized within 12 to 24 hours after it’s released, as it travels down the fallopian tube toward the uterus. If an egg meets up with a sperm cell that has made its way into the fallopian tube, it combines into one cell, a process that’s known as fertilization or conception

It takes about three to four days for the fertilized egg to move to the lining of your uterus, where it attaches or implants to the uterine wall. Once the embryo is implanted, the cells start to grow, eventually becoming the fetus and the placenta, which is tissue that can transport oxygen, nutrients and hormones from your blood to the developing fetus throughout pregnancy.

The Gestational period and your due date

The gestational period lasts approximately 266 days full term) from your conception date. It isn’t an exact date, but it is close. You may deliver a few days before or a few days after your calculated due date.

A normal pregnancy will take around 40 weeks, counting from the first day of your last menstrual period, which is about two weeks before conception actually occurs. Your pregnancy is divided into three trimesters. Each of these periods lasts between 12 and 13 weeks. During each trimester, changes take place in your body as well as in the developing fetus.

Medika Life

Medika Life is a digital Health Publication for both the medical profession and the public. Make informed decisions about your health and stay up to date with the latest developments and technological advances in the fields of medicine.

Recent Posts

Monday, Monday, Anxiety Strikes and Sticks for a Lifetime

You know that sinking feeling when Sunday evening rolls around and you think about the…

3 days ago

Science Has No Borders – And Neither Should Human Potential

Here at the HIMSS AI in Healthcare Forum, held in Brooklyn—long a gateway for immigration…

6 days ago

The Stroke That Stole My Father And the Tiny Device That Could Stop the Next One

It happened without warning. My father collapsed at home, his face slack, his words gone.…

6 days ago

Why AI’s Future in the Health Sector Hinges on Leadership, Not Just Technology

The room was standing room only. At the HIMSS AI in Healthcare Forum, the energy…

6 days ago

Pandora’s Ghost: The Seduction of Artificial Perfection

We didn’t open the box out of malice. We opened it because we were curious.…

7 days ago

Can Doctors “Gaslight” Their Patients?

I was taken aback by the term used in the article published in JAMA Network…

1 week ago

This website uses cookies. Your continued use of the site is subject to the acceptance of these cookies. Please refer to our Privacy Policy for more information.

Read More