kittykatz
30-11-2007, 10:24
Hi All
Something helpful for those asking when to test.
What is the earliest I can take a pregnancy test?
Some women can get positive results as early as 10 or 11 days past ovulation, but this is very rare. We do not recommend testing this early as it usually causes great disappointment and confusion and wastes tests. Most results will be negative this early, whether or not you are pregnant. We recommend waiting until the test date proposed by Fertility Friend. This date is based on your own cycle statistics and our research on pregnancy charts.
Statistical Data on Pregnancy Test Timing
Testing for pregnancy when trying to conceive is a sensitive issue. The emotional toll of repeated negative results is hard to imagine for those who have not experienced it. At the same time, waiting throughout the luteal phase to know the outcome of your cycle can be agony. For these reasons, knowing when to expect reliable results is extremely important, both to preserve your emotional state and to save money by not testing too early.
A related issue concerns the likelihood of getting "false" negative results which stem from testing too early. To try to shed some light on these questions we calculated some statistics on the most recently completed charts at Fertility Friend. We are presenting our findings and a discussion of the results below.
Method:
We considered a batch of the most recent charts analyzed on the FertilityFriend.com web site. We considered 93,184 recent charts for which the woman's averages from past cycles were available (most notably the average luteal phase length). For each chart considered we took note of the ovulation day, the first positive pregnancy test, the first negative pregnancy test and the average luteal phase length. From the ovulation day and the average luteal phase length we were able to calculate the day of the expected menstrual period. This latter parameter is extremely important to understand the results. Results:
Average Day Past Ovulation (DPO) for the first positive pregnancy test: 13.6 DPO Average DPO for the first "false" negative test result: 10.3 DPO Percentage of pregnancy charts with a positive test at 10 DPO: 10% Percentage of pregnancy charts which show negative results before a positive result: 17% Average time between the expected period and the first positive pregnancy test: 0.5 days before the expected period. Percentage of negative test results taken three days or more before the expected period day on non pregnant charts: 40.7%
Something helpful for those asking when to test.
What is the earliest I can take a pregnancy test?
Some women can get positive results as early as 10 or 11 days past ovulation, but this is very rare. We do not recommend testing this early as it usually causes great disappointment and confusion and wastes tests. Most results will be negative this early, whether or not you are pregnant. We recommend waiting until the test date proposed by Fertility Friend. This date is based on your own cycle statistics and our research on pregnancy charts.
Statistical Data on Pregnancy Test Timing
Testing for pregnancy when trying to conceive is a sensitive issue. The emotional toll of repeated negative results is hard to imagine for those who have not experienced it. At the same time, waiting throughout the luteal phase to know the outcome of your cycle can be agony. For these reasons, knowing when to expect reliable results is extremely important, both to preserve your emotional state and to save money by not testing too early.
A related issue concerns the likelihood of getting "false" negative results which stem from testing too early. To try to shed some light on these questions we calculated some statistics on the most recently completed charts at Fertility Friend. We are presenting our findings and a discussion of the results below.
Method:
We considered a batch of the most recent charts analyzed on the FertilityFriend.com web site. We considered 93,184 recent charts for which the woman's averages from past cycles were available (most notably the average luteal phase length). For each chart considered we took note of the ovulation day, the first positive pregnancy test, the first negative pregnancy test and the average luteal phase length. From the ovulation day and the average luteal phase length we were able to calculate the day of the expected menstrual period. This latter parameter is extremely important to understand the results. Results:
Average Day Past Ovulation (DPO) for the first positive pregnancy test: 13.6 DPO Average DPO for the first "false" negative test result: 10.3 DPO Percentage of pregnancy charts with a positive test at 10 DPO: 10% Percentage of pregnancy charts which show negative results before a positive result: 17% Average time between the expected period and the first positive pregnancy test: 0.5 days before the expected period. Percentage of negative test results taken three days or more before the expected period day on non pregnant charts: 40.7%