This is the first day that it was possible for you to conceive.
March 30,2009, roughly January 29th, december 29 is your most likely conceived date, because that is when the sperm entered your body.
Retrieved urham, Janelle (2004).Another method is by adding 9 months and 7 days to the first day of the last menstrual period."Duration of human singleton pregnancy."Comparison of gestational age at birth based on last menstrual period and ultrasound during the first trimester".The authors suggest that excluding pregnancies involving complications (that often lead to pre-term deliveries) accounts for the longer periods.Acta Obstet Gynecol Scand : 197207. .Clinically proven to dramatically increase your chances of conception and help you get pregnant fast from the very first use.However, this is how to determine an estimated date of conception if you havent been tracking your cycles.7 A study of singleton live births sexy date stories in the US came to the result that childbirth has a standard deviation of 14 days when gestational age is estimated by first trimester ultrasound, and 16 days when estimated directly by last menstrual period.Top 10 Signs of Pregnancy from Conception.Ultrasound in Obstetrics and Gynecology.May 22 sorry x, answered, in ml use the above pregnancy calculator, there are several other ones out there as well, this one will give you a due date and estimated day of conception as well!Lets explain how to figure out the date you conceived.9 281 days after LMP with a standard deviation of 13 days, was the result of a population-based study of 427,581 singleton births in Sweden.M, wikiAnswers, categories, health, sexual Health and Education, pregnancy."Due date" redirects here.Related posts: How to Calculate a Possible Due Date."Parikhs formula to minimize errors in calculating expected date of delivery".