Mumchoice Mumchoice
Due Date Calculator

Calculate your baby's arrival with confidence

First day of last period

Using 280-day gestation baseline

Estimated timeline

Due date

Gestational age

Time until due

Pregnancy progress

0%

Weekly milestone

We will summarise the current week's development once you calculate.

Learn more

How it works

Select your preferred calendar, choose whether you know the first day of your last menstrual period (LMP) or conception date, then tap calculate. We apply the standard 280-day gestation baseline and adjust for conception inputs by subtracting the configured offset.

What you'll see

Results include your estimated due date in both AD and BS, current gestational age, trimester stage, and baby development highlights for the week you are in. You'll also see how many weeks remain and gentle status messaging if you are before week 4 or past your due date.

Connected modules

The due date flows into vaccination planning (Module 8C), weekly journey content, and can be saved to your MumChoice profile. Our BS↔AD converter (Module 6) powers the dual-calendar experience so the numbers always match official Nepali dates.

Can I edit the due date later?

Yes. Run the calculator again with updated information anytime. Logged-in users can save the latest result to keep Module 8 reminders accurate.

What if my doctor gives a different date?

Medical providers may use ultrasound measurements or specific cycle history. Follow your doctor's guidance if it differs from our estimate.

This calculator offers educational guidance only and should not replace personalised medical advice. Always confirm timing with your healthcare provider.