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If a woman's periods are not regular and she falls pregnant how accurately can one then determine the conception date from an ultrasound?
Wiki User
∙ 17y ago
For about the first 10-12 weeks all babies grow at about the same rate so term date can be calculated fairly accurately, you then count back 38 weeks for the date of conception. After 12 weeks babies may not all grow at the same rate so it becomes less accurate.
Wiki User
∙ 17y ago
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How far along in pregnancy are you after your first missed period?
Well, that is something that an ultrasound will have to determine. The theory is that you are pregnant (conception has occurred) sometime after your last period. Conception doesn't necessarily occur the moment that the man ejaculates his sperm into the vagina. So, yes, you did become pregnant somewhere between when you had sex after your last period, but before you realized that you were late in getting your period. This has to be discovered by the ultrasound, to determine the EDD (estimated due date).
What are the symptoms of being 3 weeks pregnant?
It is kind of hard to tell until you get your ultrasound. But you can Google pregnancy calculators and it can help you determine the date of conception by entering in some information (such as when your last period was, possible days of intercourse etc.)
How do you know your pregnant after 48hours?
You cannot. You must wait at least 14 days after intercourse to determine if conception was successful.
How many days can you know that a woman is pregnant?
14 days after conception a woman can determine pregnancy with a pregnancy test.
Why is the conception date and how many weeks pregnant different?
Since most women do not know when they ovulated the best way for medical practitioners to determine the age of your pregnancy is to use something that most women do know and that is the start of their last period. When you ovulate during a cycle can vary so by going by date of last period puts everyone on a similar timeline. The first ultrasound from 7 to 12 weeks can determine actual age of the baby very accurately and give you a very good estimation of due date.
If you slept with a girl May 4th she tells you that she is pregnant 13 days later and then she tells you the date of conception from the ultrasound was April 18th Is it possible?
i doubt it they are usually pretty spot on
Can an ultrasound do any harm to a pregnant female dog?
An ultrasound is a common procedure that is often performed in pregnant dogs. It can detect as help determine pregnancy as early as 18 days after ovulation and around day 23 it is possible to hear the puppy's heart beats. The ultrasound is harmless and many prefer it to x-rays.
Is it true that you can do an ultrasound can show that your not pregnant even if you are pregnant?
Ultrasound can visualize fetus inside with no errors.
What sort of diet should a pregnant lady eat to have a male baby?
Diet does not affect the gender of your baby. The gender of your baby is determined at conception (when the sperm fertilizes the egg), although it is several months after conception before and ultrasound can visibly "see" the genitalia of the baby.
What is the difference between conception and fertillisation?
Fertilization happens sooner than conception. Conception means 'to get pregnant", so females get pregnant after fertilization.
Earlyest you can tell a mare is pregnant?
With a really good ultrasound system at about 10 days post ovulation. 12 days with a normal ultrasound. By day 16 to 18 a veterinarian can palpate and can determine if the mare feels pregnant or if she is showing signs of coming back into heat.
When is ultrasound needed?
When your pregnant
