Everything about pregnancy calculator

February 20, 2016

Does this the pregnancy calculator show the exact conceived date?

Generally nothing is 100% accurate. Our date of conception is just an estimate as is our due date. It ovulation occurs once a month, and on average about Fourteen days after the first day of your last period. It ovulation lasts anyway from Twelve-Twenty-four hours, Forty-eight hours at the most. However, sperm can live in the vagina for five days. So unless you know the exact day that you ovulated and only had sex one time or so, there is no Method to be exact. Some woman ovulate earlier in the cycle and some later, so again, it is just an estimate.

How accurate is the pregnancy test calculator wheel the doctor use is?

The accuracy of the wheel is based on the accuracy of knowing your cycle, they usually set it to Twenty-eight day cycle, or if you let them know you are different it will change, it has been beautiful accurate for me but ultrasound is the best that and the measurement of your uterus!

Two pregnancy test calculators and with different results?

There are slightly different methods of calculating due dates. And ultrasounds go by measuring growth, and they are NOT so precise that they can nail down the exact date of conception, early pregnancy scans have a margin of error of up to a week.

Our doctor will almost never change your due date based on the scan as long as it’s within that margin of error. They continue to use the date based on the LMP. The normal way of calculating due date is by Nagele’s Rule, where you take the first day of your LMP, add seven days, then count backwards 3 months. Other pregnancy calendars might give you a few days difference.

Will online pregnancy calculator work for me if my periods are irregular?

No, it won’t be totally accurate…they never are! Both pregnancy AND ovulation calculators tend to work on the assumption that you have a 28 day cycle and ovulate on CD14. If either of these are wrong, your due date (for either) would be thrown off.

Pregnancy is said to begin on the day of menstruation, but in reality, it’s 2 weeks prior to ovulation, whenever that is for the woman in question. If you are PG and just want a due date, the date you get from an online calculator will be the same that your doctor or midwife will give you…however, that could change by several days or even a couple of weeks if you have a dating scan before 12 weeks, as this will be more accurate than guessing.