Doctor insights on:
Edd And Conception
All : All if those can calculated after obtaining the gestational age. ...Read more
Both is best: The most accurate dating is where the 1st trimester ultrasound is within a week of the lmp dating; that confirms the lmp dating. If the 9 week ultrasound gives dates greater than 1 week from what's predicted by the lmp then the lmp is not accurate and the ultrasound dating should be used. ...Read more
Lmp november 18 early transvaginal ultrasound put edd on august 29th conception date range? Thanks doctors
My due date is aug 7 according to 11 week ultrasound and 24 week ultrasound. What is the accuracy of these ultrasounds and conception day?
+/- 1 week: The accuracy of an 11 week ultrasound should be +/- 1 week. ...Read more
Do ultrasounds add two preconception weeks when measuring baby? If baby measures 12 w is this supposed to date to LMP or conception?
Lmp due date 10th february and my edd 8th february . The baby was born 4th february. What are the dates of intercourse for these due dates?
Date of conception: Around may 7th, assuming you ovulate day 14 of a 28 day cycle. ...Read more
If my due date is nov22nd conception date march1st and ovulation february 22nd what's an estimate date of when sexual intercourse took place?
No telling: Sperm live inside the female reproductive tract for up to 7 or more days; however, when trying to get pregnant you should not count on sperm more than 2-3 days. The egg is only viable for about 12-24 hours after ovulation. Therefore, conception is rare if sex occurs after ovulation. I hope this info helps you understand how your conception may have occurred. Best wishes. ...Read more
Your OB can: Show you on an OB wheel you are due 38 weeks from your conception date if you were having 28 day cycles. ...Read more
Dd may 11. Lmp august 3. Both the 9 week and 20 week us dates match LMP with gestational size. How to i get conception date? Cycle may not be 28days
If my edd is 7/20/14 according to 1st vag u/s (lmp 10/17/13 edd 7/24/14) when is estimated time of conception?
Calculate Conception: Conception calculators are all over the web and are good sources of information and entertainment when pregnant. I use this one: http://www.Babymed.Com/pregnancy-due-date-calculator. For your pregnancy sex occurred, as expected, after your last menstrual period from 10/22/2013 to 10/27/2013. ...Read more
Naegele's Rule: The naegele's rule estimates the expected date of delivery (edd) by adding one year, subtracting three months, and adding seven days to the first day of a woman's last menstrual period (lmp). Just apply in reverse: last menstrual period was about 2/20/13: conception two weeks later. ...Read more
Ask your Doc: An ultrasound date of 9 weeks is fairly accurate so your doc can extrapolate backwards and calculate when you most likely ovulated and which days you most likely conceived. For example, if you were 9 weeks today (11-14-2012) you most likely conceived around 9-26-12 (7 weeks ago). Remember conception age is always 2 weeks less than the gestational age we calculate. Take care. ...Read more
Dated 12 weeks 4 days on 7th Aug (first trimester), no lmp, how accurate is CRL? and is this age from conception?
Very accurate: Determining gestational age by crown rump length during the first trimester of pregnancy is very accurate. The determined gestational age pretends that there was a menstrual period that started in this case 12 weeks plus 4 days before the day of the ultrasound. Conception would have been about 2 weeks after this assumed first day of LMP. ...Read moreSee 1 more doctor answer
For Ob- yes: The "wheel" as it is known, is very helpful for your doctor. For most patients, it is a source of confusion. ...Read more
Yes: Your OB can figure it out with a preg wheel and confirm it with an ultrasound. ...Read more
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