Your Journey, Calculated.

Welcome to your pregnancy timeline. Use our comprehensive calculator to get an estimated due date and a full schedule of your trimesters.

Your Pregnancy Journey

What is a Pregnancy Calculator?

A pregnancy calculator helps you estimate important pregnancy milestones, such as your due date, fetal age, and which trimester you’re currently in. It typically uses the date of your last menstrual period or conception as a starting point.

How is a Due Date Calculated?

Most pregnancy calculators use a method called Naegele's Rule. This simple rule adds 280 days (40 weeks) to the first day of your last menstrual period (LMP). This gives you an estimated due date, assuming a regular 28-day menstrual cycle. This method is a helpful estimate, but your healthcare provider will give you a more accurate date after your first ultrasound.

Trimesters Explained

First Trimester

Weeks 1–12

When most of the baby’s organs begin to develop.

Second Trimester

Weeks 13–26

Baby’s movements may start to be felt.

Third Trimester

Weeks 27–40

Final growth and preparation for birth.

Tips for a Healthy Pregnancy

  • Eat a balanced diet with prenatal vitamins.
  • Stay hydrated by drinking plenty of water. Check how much you need with our Water Intake Calculator.
  • Engage in moderate exercise as recommended by your doctor.
  • Schedule and attend all regular doctor visits.
  • Avoid alcohol, smoking, and other harmful substances.

Frequently Asked Questions (FAQs)

How accurate is the pregnancy calculator?

Our calculator provides a great estimate, but it's not a substitute for medical advice. Factors like irregular periods can affect the result.

Can my due date change?

Yes, your due date may be adjusted after an ultrasound in your first trimester, as this gives a more precise measurement of the baby's size and development.

What if I don’t know my LMP?

If you're unsure of your last menstrual period, you can use a conception date or IVF transfer date to get a due date estimate. Your doctor will also use ultrasound to confirm the date.

Can I use this if I had IVF?

Yes, the calculator includes a method for IVF transfer date. The calculation is slightly different based on the type of transfer (fresh vs. frozen, and day of transfer), but this tool can give you a close estimate.