Pregnancy Calculator

Calculate delivery due date, concpetion date, gestational age and other important dates during pregnancy using LMP,
ultrasound dating, or date of embryo transfer (IVF).

Pregnancy Due Date Calculator

Calculate estimated due date (EDD) and gestational age based on :

Conception date
      (date of ovulation, egg retrieval, or insemination)
Date of 3-day embryo transfer
Date of 5-day embryo (blast) transfer
Due date by sonogram (reverse due date calculator)
First day of last menstrual period


When was the first day of your last period?

For example, 15 12 2019

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How to use this Pregnancy Calculator Tool?

How to use Yttags's Pregnancy Calculator?

  • Step 1: Select the Tool
Pregnancy Calculator Step 1
  • Step 2: Select The Options & Enter The Date And Click On Calculate Button.
Pregnancy Calculator Step 2
  • Step 3: Check Your Pregnancy Calculator Result
Pregnancy Calculator Step 3

If you want to link to Pregnancy Calculator page, please use the codes provided below!

Pregnancy Calculator

FAQs for Pregnancy Calculator

what is a Pregnancy Calculator?
A pregnancy calculator is a tool that estimates a woman's due date and provides information about the various stages of pregnancy based on the date of her last menstrual period or conception date.
How many days to calculate pregnancy?
Pregnancy is typically calculated as a 280-day or 40-week period from the first day of a woman's last menstrual period to the estimated due date.
How do you calculate the end of pregnancy?
To find your due date, enter the date of the first day of your last period, and select 'show your due date'. Pregnancy normally lasts from 37 weeks to 42 weeks from the first day of your last period. You need to know the first day of your last period to use this calculator.
What week is baby gender developed?
Boys' and girls' genitals develop along the same path with no outward sign of gender until about nine weeks. It's at that point that the genital tubercle begins to develop into a penis or clitoris. However, it's not until 14 or 15 weeks that you can clearly begin to see the differentiated genitalia.
Which week is best for delivery?
Babies born too early may have more health problems at birth and later in life than babies born later. Being pregnant 39 weeks gives your baby's body all the time it needs to develop. Your baby needs 39 weeks in the womb because: Important organs, like your baby's brain, lungs and liver, need time to develop.