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If your girlfriend doesn't know the conception date, I don't think there's really any way anyone could tell you.
Even a baby's due date or actual delivery date offers no real clue as to the exact date of conception.
You might try the conception calculator linked under more info in the right column.
You can always get a DNA test, or you can trust your girlfriend and love the baby as your own any way.
A women generally ovulates 14-18days after the first day of her last menstrual period. If you know the first day of your last menstrual period then you can estimate the week conception occurred.
Given that sperm can live for days within the women, during the conception date may be difficult. If a women has sex on Friday, Saturday and Sunday with three different men, any of them can be the father.
Set your mind at ease and get a DNA test.
You really won't be able to pinpoint the exact date. you can find aproximately by knowing the day her last period started and how long her cycles are. It would be an aproximation though.
http://thefertilityshop.com/ovulation-calculator.htm
Hopefully you are still on good terms with your girlfriend, if you should attend the doctor visits, then one thing is of great help, when the first ultrasound is given, hopefully before the 11th week, there is a measurement that is given called a crown rump length, this is very very accurate in telling the gestational age of the child. after the 13th week, the baby is able to curl so the accuracy is not there, the spinal segements have formed. Crown rump length will give you a very accurate date. Good Luck. I hope everything works out for you.
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Is there a formula I can use to figure out my due date?
If you know your date of conception, all you have to do is add 9 months to find out your approximate due date.
How accurate are blood pregnancy tests at predicting the exact date of conception?
They are quite accurate, but no-one can know for sure when the conception date was
What if you dont know when your last period was and am pregnant how do I calculate conception day.?
Find out when your due date is because you can work out your conception date from that
Can you be sure who the father of your child is if you slept with 2 people 5 weeks apart?
You would need to know your conception date and go from there. If the date is not a pin point date, you might opt for a DNA test.
If you know the date of conception FOR SURE how can you figure out your due date from that All the calculators put my conception date based on my cycle wrong therefore the due date is wrong?
I don't know, because I can't find one either. I do know that calculating from the fist day of your last period is NOT accurate especially if you practice fertility awareness. The first day of my last period was over 50 days ago and I just ovulated.
I dont know when my last lmp was or when the conception occured i know my due date is May 9 2008. I made a mistake and cheated on my husband on August 122007. i need to know exact conception date?
id say in July would be conception cuz if you count from august to may that's ten months!! Id say that conception occured around August 17th. In order to calculate the date of conception, Google 'how to calculate dates of conception' Healthlink is the best site, they allow u to calculate backwards from your due date to conception.
How do you tell your due date?
To find your due date you need to know either your conception date or the date of your last period.
How do you know the date of conception?
See the Related Link for "Pregnancy date calculator" to the bottom for the answer. Next time you see your doctor, ask them the estimated date of conception. They may be able to give you a more exact date.
What is my due date if i am 23 weeks and 3 days?
Only YOU can answer this - Only YOU (and your partner) know the date of conception !
If the baby is due 14th march 2008 what is the date of conception?
If you don't know your date of conception, it is unlikely you have a "perfect" due date - however, the due date is not usually the day that the baby arrives. Any day that anyone gives you from the information you have provided will be, at best, a guess.
What is my due date I definitely conceived on Feb 14 but dont know the date of my last period?
nice conception date! You due date is roughly 6th November 2008
Is it good if your father figure is oyur best friend?
Yes it is. My best friend is my father figure and i dint know what i would do with out himhe is also my cousin.
