Calculation Details

Pregnancy Timeline

Estimated Due Date
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Current Gestational Age
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Estimated Conception
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An Estimated Date of Delivery Calculator helps expecting mothers determine the approximate arrival date of their baby. Tracking your pregnancy timeline is a wonderful way to follow your baby's growth and understand your bodily changes. By simply entering a few basic dates you can instantly map out your upcoming milestones.

How to Calculate Your Due Date

Using this tool is very simple. First select the tracking method that best fits your medical history. The input fields will adjust instantly to match your selection.

  • Last Menstrual Period: Enter the first day of your last cycle. You can also adjust your average cycle length for better accuracy.
  • Conception Date: If you know the exact day of conception select this option. The calculator will count forward from this specific day.
  • IVF Transfer: Select either a three day or five day embryo transfer. Enter the date the transfer occurred to find your results.

Understanding Your Pregnancy Timeline

A typical pregnancy lasts about two hundred and eighty days from the first day of your last period. This is equivalent to forty weeks. Every pregnancy is completely unique and babies develop at their own pace.

First Trimester: This stage lasts until the end of week thirteen. Major early development happens during this crucial time.

Second Trimester: Spanning from week fourteen to week twenty seven. Many women experience higher energy levels during this phase.

Third Trimester: Starting at week twenty eight and lasting until birth. Your baby gains significant weight and prepares for delivery.