How are pregnancy weeks calculated?

One of the first questions that women ask themselves when they discover they are pregnant is: How many weeks pregnant am I? Calculating pregnancy weeks is essential to determine the probable due date and the development of the fetus. Here’s how to do it:

  • Date of last menstruation: Calculating pregnancy weeks is based on the date of your last menstruation. To calculate it, count from the first day of your last menstruation until today. This number of days is divided by 7 to obtain the number of weeks. For example, if your last menstruation was on January 1st and today is April 20th, you would be about 15 weeks pregnant.
  • Date of conception: If you know when conception took place, you can calculate the weeks from that date. Most women do not know exactly when conception occurred, so the date of the last menstruation is the best way to calculate the weeks.
  • Ultrasound: The most accurate way to determine gestational age and pregnancy weeks is through an ultrasound. During the ultrasound, the doctor can measure the size of the fetus and determine the gestational age.

In addition to calculating weeks, many women want to know the sex of their baby. That’s why our product “Test to determine fetal sex during pregnancy” can be a great help for expectant mothers. These tests are easy to use and accurate, and can help you determine the sex of the baby from week 8 of pregnancy.

Our product is available on our website, where we offer promotions and special offers on these products. If you want to learn more about our products, you can visit our website and see all the available options.

In conclusion, calculating pregnancy weeks is essential for a healthy pregnancy and to plan the birth of your baby. Additionally, if you want to know the sex of your baby, our product “Test to determine fetal sex during pregnancy” can be a great help for you. Visit our website and get yours today!


PRESENT: + 20 years in complex legal and IT projects in France, the UK and Spain Expert in BioExpert exclusive network of experts in the sectors of life science and investment. Startups coordinator of ANIS (Spanish Association of Health Journalists) Lider ehealth in Asociación Española de Start up Active member of ASEBIO (Leading Spanish Biotech Association) PAST: Sociedad Española Informática de la Salud MBA in Ecole Des Mines – Nantes Master Degree in Ipag Business School in Paris