Pregnancy Calculator

- May 09, 2025
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Calculate important pregnancy dates and milestones based on your last menstrual period (LMP) or due date. Track trimesters, development stages, and get personalised week-by-week information.

Calculate Due Date

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Additional Information (Optional)

Medical Disclaimer

This calculator provides estimates based on standard pregnancy calculations. Every pregnancy is unique, and dates may vary. This tool should not replace professional medical advice. Always consult with your healthcare provider for personalised guidance about your pregnancy.

About Pregnancy Due Date Calculation

A typical pregnancy lasts about 40 weeks (280 days) from the first day of the last menstrual period. The due date is an estimate, as only about 5% of babies are born on their exact due date.

Naegele's rule is the standard method for calculating the estimated due date (EDD). It involves adding 1 year, subtracting 3 months, and adding 7 days to the first day of the last menstrual period. This calculator uses this method with adjustments for cycle length when calculating from LMP.

Your Personal Pregnancy Timeline Calculator

The Pregnancy Calculator is a handy tool designed to help expectant parents track important dates and milestones during pregnancy. By simply entering information such as the first day of your last menstrual period or conception date, you can receive personalised details about your pregnancy journey. It breaks down each trimester and offers insights on fetal development as well as the changes you can expect in your body week by week.

How to Calculate Your Due Date

With the Pregnancy Calculator, you can determine your estimated due date (EDD) using several methods. Here’s what you can use:

  • Last Menstrual Period (LMP)
  • Conception Date
  • Known Due Date
  • Ultrasound Date

Each method allows you to input relevant information and get accurate results tailored to your situation.

Understanding Your Pregnancy Trimesters

Your pregnancy is divided into three trimesters, each lasting about three months. Knowing which trimester you’re in helps you prepare for important check-ups and milestones. The Pregnancy Calculator will tell you which trimester you are currently in and when each trimester begins and ends, making it easier to keep track of your journey.

Important Milestones to Look Out For

The Pregnancy Calculator provides an overview of key dates and milestones throughout your pregnancy. Some of these milestones include:

  • First Trimester: From week 1 to week 12
  • Second Trimester: From week 13 to week 26
  • Third Trimester: From week 27 to week 40
  • Viability Date: When your baby can survive outside the womb

These milestones help you understand your baby's development and your own Health during pregnancy.

Personalised Week-by-Week Insights

The calculator offers personalised information about your baby's growth and changes in your body for each week. This section includes updates on what to expect, such as:

  • Your baby's development milestones
  • Changes in your body and what they mean
  • Helpful tips for managing pregnancy during that week

This feature keeps you informed and prepared as you progress through your pregnancy.

Advanced Options to Tailor Your Experience

The Pregnancy Calculator includes advanced options that allow you to provide additional information. You can specify if this is your first pregnancy or if you are expecting twins or multiples. These details help tailor the calculator's results and advice to better suit your unique circumstances, ensuring you get the most relevant information.

Medical Disclaimer for Peace of Mind

While the Pregnancy Calculator provides valuable estimates, it is crucial to remember that every pregnancy is unique. The tool is designed for informational purposes and should not replace professional medical advice. Always consult with your healthcare provider for personalised guidance tailored to your needs.

Learn More About pregnancy due date Calculation

Understanding how your due date is calculated can provide insight into what to expect. Typically, a pregnancy lasts about 40 weeks from the first day of your last menstrual period. The calculator uses Naegele's rule, which is the standard method for estimating due dates, accounting for average menstrual cycle lengths. This ensures that you have the most accurate and relevant information during your pregnancy journey.