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.

Ahụ ike nne

Ụbọchị ngwụcha nwa (EDD)

Gbakọọ ụbọchị ịkwụ ụgwọ dabere na oge ịhụ nsọ ikpeazụ

Medically Reviewed:

Dr. Priya Sammani, MBBS, PG Dip. FM

Updated on: April 2026

❓ Frequently Asked Questions (FAQ)

Kedu ka ụbọchị a ga-agwụ si zie ezi?

Naanị ihe dị ka 5% nke ụmụ ọhụrụ ka a na-amụ n'otu oge EDD (Ụbọchị Nnyefe Atụrụ anya) enyere ha. Ụbọchị a bụ atụmatụ dabere na nkezi ime izu 40. Ụzọ kacha mma isi chọpụta ụbọchị bụ nyocha nke ultrasound mere na izu iri na abụọ.

Kedu ka esi gbakọọ ụbọchị ruru nwa?

Dịka iwu Naegele siri dị: N'ịgụghachi ọnwa 3 site na ụbọchị nsọ nsọ ikpeazụ (LMP), na-agbakwunye ụbọchị asaa na otu afọ. Ma ọ bụ: LMP + 280 ụbọchị.

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World Health Organisation (WHO) na ụkpụrụ ahụike ahụike nke mba ụwa nabatara na nha nhata.

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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..