Due date question....?

Question

I am trying to correctly calculate my due date. I've been told by my OB that my due date is January 7th, which makes me 9 weeks pregnant today. I know that I conceived on April 7th. Considering this, I feel like I might be a bit further along than my OB said. I also had an ultrasound 2 1/2 weeks ago; the tech said I looked about 6 1/2 weeks. My mother told me she always carried "small". Anyone know how I might calculate my due date a bit more accurately?

Answer 1

the ultrasound would be your best bet. they are able to take measurements and give you a more accurate due date.
sperm can live 3-5 days inside the woman, so if you think you concieved on one day it could have been up to 5 days later.

Answer 2

To calculate your approximate due date from the first day of your last period, count back 3 months and add 7 days. For example, I'm also pregnant now and my last period started on Feb 20 so I would count back 3 months which is Nov and add 7 days. So my due date is Nov 27, 2007. But like everyone has said the baby will come when it is good and ready. I have two kids and my first came 4 weeks early and my second about 2 weeks. So your baby could come in Dec or Jan.

Answer 3

Most OB docs use the handy little wheel, which calculates from the first day of your LMP. Its based on ovulation 2 WKS after your first day of your LMP, and a LP of 14 days. This is the average, and not all women are average. IF you know when you ovulate, you can count from there, and then add 2 wks. U/S at the early stages is most accurate. The baby does the greatest amount of growing and changing during that time. You cant calculate from the day you had sex and accurately get your due date.

Answer 4

ok i used a concept calculator and a calendar, I counted back 14 weeks from this coming Tuesday and it incredibly is what I have been given: First Day of ultimate Menstrual era:January 8, 2008 probable Date of Ovulation: January 22, 2008 achievable Dates of concept: January 18 to January 26, 2008 Due Date: October 14, 2008 (40 weeks) i'm hoping this facilitates.

Answer 5

My baby was conceived on April 4, 2007. And I am 10 weeks and 5 or 6 days today. My due date is Dec. 26. So according to mine I think you should be due Dec. 29, 2007 and you should be in your 10th week. But I'm no Dr. I'm just going off of my dates. Hope you have a healthy pregnancy.

Answer 6

I usually calculate it by the first day of my LMP. Some doctors calculates it by u/s. You can't really say which one is more accurate thats why some women go into labor 2 weeks before or 2 weeks after their"estimated" due date.

Answer 7

My LMP was on Oct. 11th but when I found out I was pregnant, they told me that my LMP must have been the end of Oct.. I know it wasn't but they did an ultrasound and measured the baby. You should go by the date that the Dr. gave you because if they did the ultrasound it gives them a better timeline when they can see how big the baby is.

Answer 8

the ultrsound is the most accurate, especially that early. go by that for sure. just cause you "think" you concieved on a certain day don't mean you did. sperm can live in there for longer than what most people know. at 6 1/2 weeks, you would have got the most accurate due date. I did.

Answer 9

6 1/2 plus 2 1/2 is 9 weeks. I think you're 9 weeks.

Answer 10

They calculate from the date of the start of your last period and not your conception date, so it in affect adds a further two weeks to the dates. This is because the conception occurred during that menstrual cycle.