Pregnancy Inputs

Choose a calculation method and enter the available pregnancy or cycle details.

Pregnancy Timeline

Calculation Method

First Day of Last Period

Cycle Length

Conception Date

IVF Transfer Date

Embryo Age

Ultrasound Date

Scan Weeks

Scan Days

Pregnancy Type

Timeline Style

Today / Reference Date

Pregnancy Milestones

Timeline

Event	Date	Pregnancy Week	Meaning

Labour and Birth Window

37-42 weeks

Stage	Date	Week	Note

How This Pregnancy Due Date Calculator Works

This calculator estimates your due date using the first day of your last menstrual period, conception date, IVF transfer date or ultrasound dating information.

It also estimates current pregnancy week, trimester, fetal age, implantation window, pregnancy test timing, common scan windows and labour stages from early term to post term.

Due Date Estimated Birth Date

Estimate your expected due date from LMP, conception, IVF or ultrasound data.

Weeks Pregnancy Week

See your estimated current week, trimester and pregnancy progress.

Timeline Milestones

View important pregnancy dates, scan windows and labour stages.

Important: This calculator provides estimates only. Pregnancy dating can change after ultrasound or clinical review. Always follow advice from your midwife, doctor or healthcare professional.

Pregnancy Result

Estimated pregnancy timeline

Estimate

Fill in the calculator to estimate your due date and pregnancy timeline.

Pregnancy Breakdown

Method-

Pregnancy type-

Gestational age-

Estimated fetal age-

Days pregnant-

Useful Notes

A due date is an estimate, not a guaranteed birth date.
An early ultrasound may adjust the due date when dates are uncertain.
IVF due dates can be estimated from transfer date and embryo age.
This calculator does not replace medical advice or antenatal care.