How accurate is the due date?

Only about 5% of babies are born on the exact EDD (Expected Date of Delivery) given to them. This date is an estimate based on an average 40 week pregnancy. The most accurate way to determine the date is the ultrasound scan done at 12 weeks.

How to calculate the due date of the baby?

According to Naegele's rule: Counting back 3 months from the date of the last menstrual period (LMP), adding 7 days and a year. Or: LMP + 280 days.

Obulamu bwa bamaama

Olunaku lw'okuzaala omwana (EDD)

Bala olunaku lw’okuzaala okusinziira ku nsonga z’asembayo

Medically Reviewed:

Dr. Priya Sammani, MBBS, PG Dip. FM

Updated on: April 2026

❓ Frequently Asked Questions (FAQ)

Olunaku lw’okuzaala lutuufu kwenkana wa?

Abaana nga 5% bokka be bazaalibwa ku EDD entuufu (Expected Date of Delivery) ebaweebwa. Olunaku luno kubalirira okusinziira ku buli lubuto lwa wiiki 40. Engeri entuufu ey’okuzuula olunaku kwe kukebera amaloboozi agayitibwa ultrasound scan ekolebwa ku wiiki 12.

Obala otya olunaku lw’okuzaala omwana?

Okusinziira ku tteeka lya Naegele: Okubala emabega emyezi 3 okuva ku lunaku lwe yasembayo okugenda mu nsonga (LMP), n’ogattako ennaku 7 n’omwaka. Oba: LMP + ennaku 280.

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Ekitongole ky’ebyobulamu mu nsi yonna (WHO) n’ebiragiro by’obujjanjabi eby’obujjanjabi ebimanyiddwa mu nsi yonna n’ennyingo ezituufu.

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Medical Disclaimer: These calculators are provided for educational purposes only and are not a substitute for professional medical advice. Always consult a qualified physician regarding any health concerns..