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Chances of Being Pregnant After a Negative Home Pregnancy Test

Oct 29, 2008 - 5 comments
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pregnancy tests



Found this on-line and thought it interesting.

What Are My Chances Being Pregnant With a Negative Pregnancy Test? Am I Pregnant?

A repeatedly negative pregnancy test when you missed your period means that you are not pregnant and after a week of a missed period with negative pregnancy tests your chance being pregnant is 1%.
The timing of a positive pregnancy test depends on implantation. If you are pregnant then a urine pregnancy test is not expected to be positive until at the very earliest 3-4 days after implantation, which is about 10 dpo days after ovulation/fertilization (4 days before the next period), and about 51% of pregnant women have a positive pregnancy test 2 days before the expected next period. What are your chances of still being pregnant when you are trying to conceive and have a negative pregnancy test? What are your chances getting a positive HPT if you are pregnant? Below is a table showing your chances of still being pregnant with a negative pregnancy test on different days of your menstrual cycle:
Pregnancy Chances after a Negative Pregnancy Test in Relationship to Ovulation and the Days before or after the Expected Period
Days Post
Ovulation
(DPO) AF due             Chance of Still Being Pregnant          %Not Pregnant   %of women who test positive

12 DPO EP -3         12.3%                                         87.8%              51%
13 DPO EP -2          9.5%                                         90.5%              62%
14 DPO EP -1          8.0%                                          92.0%              68%
15 DPO AF              6.5%                                           93.5%              74%
16 DPO EP +1          5.3%                                           94.8%              79%
17 DPO EP +2          3.8%                                          96.3%              85%
18 DPO EP +3          2.5%                                          97.5%              90%
23 DPO EP +7             1%                                         99.0%              96%

Date are based on the fact that in each menstrual cycle there is an about 25% chance of getting pregnant as well as a scientific study published by Wilcox in JAMA in 2001.
Your chance of getting pregnant each month may be different depending on your age, certain medical issues, whether you ovulate or not, and if your are trying to get pregnant with IVF or other fertility medications.

Besides being pregnant, the next reason for missing your period is not ovulating (anovulation). That's why it's essential for every woman who TTC to chart her fertility and to know precisely each cycle if ovulation happened or not. Knowing if and when you ovulated usually removes any confusion you may have if your period didn't come. Start charting your fertility NOW. It helps you find out if you ovulated, whether you are fertile, and it will let you know early on if you are pregnant. If you know you ovulated and your period hasn't come 15+ DPO, then there could be only one reason: You are pregnant. If you know that you did not ovulate then you can often expect your period not to come and you are prepared for that.



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by stressed126, Dec 11, 2010
i gave birth 6months ago and just had my period almost 7 weeks ago. once again i am very late have taken many tests and all have come out negative. my chest is very sore i have much vaginal discharge my stomach feels quite full and i have enormous heartburn. if i am not pregnant then what the heck is wrong with me

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by vikki945, Dec 16, 2010
late for my period by 8 days now took 2 preg tests both negative am gettin worried now as im always regular and are tryin for another baby, im not stressed or anything coz i know i have to relax at this time when  ttc

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by rkent92, Jan 12, 2011
my husband & i are trying to conceive with no luck for over a year. im currently 3 weeks late, my breasts hurt, im gaining weight and i have other symptoms but every urine test ive taken has been negative. has anyone experienced this... and have been pregnant????

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by kid_shuichi, Mar 28, 2011
It gets complicated for me... My last period was feb 20 I have a 30 day cycle so that would make me due on the 22nd (?) and well I took a test on the 18th neg on the 23 and 25 both neg but here I am no period just bloated and crampy. Could I just be really late? Or tested maybe too early? I've also had a series of yeast infections, could they be messing with my period?

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by shorty804, Sep 24, 2011
I AM 17 YEAR OLD AND IM SO SCARED TO DEATH I DONT KNOW WHAT TO DO BUT MY PERIOD HAVE NOT COME ON ABOUT IN 2 MONTH AND  2 WEEKS I DONT KNOW WHAT TO DO I NEED HELP I ONLY HAD SEX ONCE AND YES HE HAD A CONDOM ON I MADE SURE OF THAT I NEED HELP

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