Pregnancy Due Date Calculator:

pregnancy calculator

This interactive Due Date Calculator can help you estimate when your baby might be born! Of course, due dates are a little unpredictable, but pregnancy typically lasts around 280 days, or 40 weeks, from the first day of your last period.

If you will have a c-section, your doctor will use estimated due dates to plan for your c-section. C-sections are typically scheduled a week or a few days before an estimated due date.

More Pregnancy Due Dates:

In addition to birth, this calculator also gives you estimates for other exciting due date milestones, such as your possible conception date and when you’ll hear the heart beat by doppler for the first time!

You’ll have even more exciting scans, such as anatomy ultrasounds, and those are estimated below as well.



Enter the date of the first day of your last menstrual period (LMP):



Probable date of conception:


Foetal Age Today:


Best date range for NT scan:


(12 weeks 3 days to 13 weeks 3 days)

Morphology Scan Date:


(19 weeks)

First Heart Tones by Doppler:


(11 to 12 weeks)

Best time to evaluate cervical length in patient with risk factors:


Best time for routine anatomy ultrasound:


(18 to 20 weeks)

Estimated Due Date:



Early Signs of Pregnancy:

Sometimes, the earliest signs of pregnancy will let you know you’re pregnant long before a due date calculator.

Since egg fertilization typically happens 14 days before your next period, give or take, you could be having early pregnancy signs and symptoms right around your first missed period.

Many women say they knew they were pregnant from signs like: sore breasts, increased sense of smell, fatigue, spotting, cramping, and other small changes from their normal cycle.

If you’re hoping to conceive – pay attention to your cycles and use ovulation trackers to help you understand your fertile days.

Do You Think You’re Pregnant?

Make sure to make an appointment with your doctor as soon as you get a positive test or if you feel any symptoms that don’t feel right.

You’ll want to have a medical professional you trust who can follow the course of your pregnancy with you.

Best wishes to you on your journey! Please know that regardless of what happens, there are many women who have experienced exactly what you are experiencing. You are never alone. Please reach out to someone if needed.

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