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Menses blood could possibly interfere with a home pregnancy kit. You can get a false positive or false negative with any testing kit. A women is better off seeing her general practitioner doctor or obstetrics/gynecological doctor for testing, pre-natal education and treatment.

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14y ago
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5mo ago

No, menstrual blood should not interfere with urine pregnancy test results. The hormone detected in a pregnancy test (hCG) is not present in menstrual blood, so the presence of menstrual blood should not impact the accuracy of the test.

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Q: Can menstrual blood interfere with urine pregnancy test results?
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Continue Learning about Astronomy

How do you know if you are pregnant after the night you think you got pregnant?

You can take a home pregnancy test a few weeks after that night to check for pregnancy hormones in your urine, or visit a doctor for a blood test to confirm pregnancy. Symptoms like missed periods, breast tenderness, nausea, and fatigue can also indicate pregnancy, but the only way to be sure is through testing.


Does pregnancy affect the accuracy of a pregnancy test?

Pregnancy does not affect the accuracy of a pregnancy test. Pregnancy tests detect the presence of the hormone human chorionic gonadotropin (hCG) in the urine or blood, which is only present during pregnancy regardless of the woman's physiological state.


Would a test be accurate during implantation?

Fertilization is when the pregnancy hormone hCG has begun production and this hormone is what is searched for by pregnancy tests (urine and blood). However, this amount can be very little and may be difficult for a urine test to pick up. You can get the best accuracy a few days after your missed period, but they (urine tests) can detect up to 5 days before the first day of your last menstrual period. There is hCG during implantation, so it does have the potential to be detected and accurate, particularly for blood tests which are much more sensitive than urine tests.


What exactly is spotting?

Spotting refers to light bleeding that may occur in between menstrual periods. It is usually lighter and shorter in duration compared to a regular period. Spotting can have various causes, including hormonal fluctuations, pregnancy, birth control, infections, or certain medical conditions.


Is a negative blood pregnancy test 49 days after intercourse accurate?

There are two kinds of blood tests for pregnancy tests -- quantitative and qualitative. Assuming you've waited long enough (much less than 49 days), and the test is done properly by the lab, the quantitative test is very accurate. The qualitative blood test is about the same accuracy as urine tests. Even the home urine tests are 97% accurate. So if you took the quantitative blood test you can be very sure it's right. Even with the other tests 97% is pretty accurate. I suspect the error rate in blood labs is greater than that.

Related questions

Can you use menstrual blood to take a blood type test?

No, menstrual blood is not suitable for blood type testing. It does not provide accurate results as it may contain various other substances that can interfere with the test. It is recommended to use a blood sample obtained through a traditional venipuncture method for accurate blood type testing.


Is menstrual blood produced in the ovary?

No, menstrual blood is not produced in the ovary. Menstrual blood is the lining of the uterus that is shed during a woman's menstrual cycle. Thanks


Would it matter if you got menstrual blood on your pregnancy test?

I would expect that menstrual blood would be a good indication that you are not pregnant. if your not trolling


Can cortisone affect the results of a pregnancy test?

Cortisone would not typically affect the results of a pregnancy test. Pregnancy tests detect the presence of human chorionic gonadotropin (hCG) in urine or blood, which is a hormone produced by the placenta during pregnancy. Cortisone would not interfere with this hormone or affect its detection in a pregnancy test.


Can a menstrual cycle affect pregnancy?

You dont get your period while pregnant. The blood goes to the baby.


Can blood pressure medication affect the results of a pregnancy test?

no, blood preasure and pregnancy have nothing in common unless you are pregnate and have high blood preasurethe pregnancy test has no effects from the medicine


What does the menstrual discharge consist of?

Menstruation results in the discharge of the uterus lining, consisting of blood and tissue.


Can a herpes outbreak affect the results of blood pregnancy test?

Definately not.


What is the difference between the menstrual cycle and the period?

The menstrual cycle refers to the series of hormonal changes in a woman's body that prepare for a possible pregnancy each month. The period, or menstruation, is the shedding of the uterine lining when pregnancy does not occur, typically lasting 3-7 days.


Is it normal to feel menstrual cramps when 4 weeks pregnant?

Yes, providing they are not severe or come with blood.


What is the flow of blood and tissue called that results when pregnancy does not occur?

Uh.........menstruation.


How long does a blood pregnancy test take?

You can usually get results the next day