When is my delivery date

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Page last reviewed: 29 April Next review due: 29 April Home Pregnancy Finding out you're pregnant Back to Finding out you're pregnant. Due date calculator.

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Morin L, Lim K. Ultrasound in twin pregnancies. J Obstet Gynaecol Can. Sperling L, Tabor A. Twin pregnancy: the role of ultrasound in management. Acta Obstet Gynecol Scand. Method for estimating due date. Committee Opinion No. Ameri-can College of Obstetricians and Gynecologists. The timing of the "fertile window" in the menstrual cycle: day specific estimates from a prospective study BMJ ; Timing of sexual intercourse in relation to ovulation.

Effects on the probability of conception, survival of the pregnancy, and sex of the baby. PMID Determination of Gestational Age by Ultrasound No. Martin JA, et al. Natl Vital Stat Rep. Multifetal gestations: twin, triplet, and higher-order multifetal pregnancies. Practice Bulletin No. Page JM, The risk of stillbirth and infant death by each additional week of expectant management in twin pregnancies.

Epub Mar Risk of late-preterm stillbirth and neonatal morbidity for monochorionic and dichorionic twins. Epub Mar 5. Kahn B, et. P PMID: Definition of term pregnancy. All calculations must be confirmed before use. The estimated results are not a substitute for clinical judgment. Neither perinatology.

All rights reserved. This material may not be republished, broadcast, rewritten or redistributed. Please enable JavaScript to view all features on this site. Calculate estimated due date EDD and gestational age based on : Conception date date of ovulation, egg retrieval, or insemination Date of 3-day embryo transfer Date of 5-day embryo blast transfer Due date by sonogram reverse due date calculator First day of last menstrual period month 1 January 2 February 3 March 4 April 5 May 6 June 7 July 8 August 9 September 10 October 11 November 12 December date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 year See Also Calculate Due Date From Ultrasound Report Calculate Gestational Age from Ultrasound Measurements Calculate Gestational Age on a Given date.

Determining the Date of Conception Because the human egg is capable of fertilization for only 12 to 24 hours after ovulation the date of ovulation may be taken as being the date of conception. Observed Gestational Age at Delivery The table below shows the average age of infants delivered in the United States according to the number of fetuses being carried plurality [29].

Average Gestational Age weeks.