Pregnancy dating date conception

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This weekly email gives you fun pregnancy facts, useful tips and great recipe ideas to help you and your baby have the healthiest possible pregnancy. Find out all you need to know about week 4 onwards here.

The pregnancy calculator gives you an approximate due date, which it by adding 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28 day cycle, it is adjusted for longer or shorter cycles).

But it’s important to remember these rough estimates don’t take the variability of your cycle into account.

When determining a fetus’s gestational age, doctors can utilize several different diagnostic methods.

However, if your periods are not regular or are not 28 days apart, your due date may be different from the "280-day rule." Your health care provider may order an ultrasound to more accurately determine your due date.

) Finally, the now-fertilized egg must complete its journey to the uterus and implant in the uterine wall.

Implantation generally occurs between 8 – 10 days after ovulation.

When you’re trying to determine when your pregnancy began, the date you’re really looking for is is really helpful.

If you’re trying to figure out when conception occurred, it’s important to know that conception isn’t the whole story of when your pregnancy began.

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