Doctor insights on:
False Positive Blood Pregnancy Test
Can pregnancy blood test give false negative. 3 days late, urine test negative and blood test negative too?
When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more
Timing: It is possible that the urine pregnancy test detected HCG that was in the urine even as a pregnancy was failing (impending miscarriage) but by the time a blood test was done, the miscarriage had already occurred and the levels of the HCG pregnancy hormone were cleared. Alternatively, it could have just been a false (+) urine pregnancy test. ...Read more
Home pregnancy test was positive but blood hCG came back negative. Ob perform a blood test again. Hcg 750 progesterone 21. Why first hCG was negative?
Lab error: Presuming the first blood pregnancy test was close to the second, one of them had to be a lab error, probably the first one that was negative. If there is any question about the health of the pregnancy, your doctor can follow the bhcg level to see if it is rising appropriately and obtain an ultrasound when the level is high enough.For more info www.Askyourgynecologist.Org. ...Read more
Misinformed?: Who told you that your hep c test was false? If you have no viral load that means you cleared an infection. Are you sure you are getting the right advice? ...Read more
I had a positive pregnancy test and a positive blood pregnancy then levels declined quickly. Then positive home test. Negative blood. Any suggestions?
See below: Return to your doctor for additional testing, if needed. ...Read more
I took 7 home pregnancy test all positive but doctor test say negative and blood test was negative why?
Please clarify: Perhaps the reason can be known when you tell us honestly why you kept testing at home even though the test told you a positive answer. Something must have clued you into the fact something was not normal. You tell us. ...Read more
Yes: Yes is correct! the blood test will turn positive at least several days earlier. ...Read more
Can decidual bleeding during early pregnancy give you a false negative pregnancy test after having tested positive?
Ectopic Pregnancy: Positive.Get a more detailed answer ›
Too early to tell.: Implantation occurs about 9 days after fertilization. This is usually a bit before your next cycle is to start. Preg test usually turns positive a week or even later after implantation. If your cycle is more than 5 days late then the test is usually positive. No one can tell you exactly what day it turns positive on. Exactly when you ovulated, fertilized and implanted are all estimates. ...Read more
Yes: Implantation allows HCG to ^.Get a more detailed answer ›
Is I it possible to have negative urine pregnancy test but positive blood pregnancy test. Why do the urine test keep coming out negative?
I had a positive blood pregnancy test with a 10&then the day after i had cramps but no blood then my next blood test came out negative can I pregnant?
HCG tests: Was this a lab-run test or a home test? Usually, home quantitative HCG tests are not readily available. Assuming the two test you describe we're accurate, the negative 2nd result would indicate a loss of the pregnancy. However, one or both tests could have been inaccurate. Or, you may harbor anti anti IgA heterophile antibody which can give spurious results. Check with your gynecologist to be sure. ...Read more
I had my iud removed last week and had a positive blood pregnancy test on Monday and a negative on Thursday. Is there a chance the negative could be wrong? I feel so pregnant but not due for period for another week. What are my odds. I want to be pregnant
Testing too soon: Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about two weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully. ...Read more
Good mornin doctor does weak positive blood pregnancy test indicate that one is really pregnant and are there chances that it could become negative ?
Re do the test: If the test result was not clear, and you have not had a period, you should repeat the test in 3-4 days. Use first morning urine and follow the instructions for the test carefully. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. ...Read more
I had a weak positive blood pregnancy test but started my period the following day what does it mean?
Follow up testing: This sounds like you need to have further testing to determine if you are pregnant or not. A blood test may be helpful in measuring pregnancy hormones. An evaluation by a provider may be necessary to determine if your bleeding is related to your period or pregnancy bleeding/spotting. ...Read more
I had a positive blood pregnancy test 6 days before my missed period i didn't think you could get a positive before implantation?
Possible: It is possible but the hormone has to be a certain value to show up. It also depends on how long your cycle is. Usually it is too early to know. But that is after implantation. You can't get a positive value before implantation. It likely means ovulation occurred earlier than expected. ...Read more
What's the chances of a negative home pregnancy test and a positive blood pregnancy test before a missed period ?
The blood: pregnancy test is the gold standard. So I would go with that result. Early home pregnancy tests can sometimes detect pregnancy prior to missed period. Many regular home pregnancy tests may not show a positive prior to the missed period - as a certain level of HCG is needed to trigger a positive. ...Read more
No: I've never heard of this effect.Get a more detailed answer ›
If the first one blood pregnancy test said positive and the second one said negative can I be pregnant ? Should i take another blood test ?
Will the dr's ofc call with pregnancy test results whether they're negative or positive? How long does it take for a blood pregnancy test results
Pregnancy test: You will need to call your doctor's office for this information.. ...Read more
I just took a blood pregnancy test yesterday. The numbers came back - 124. I'm not sure if that is negative or positive.?
Preg test: Home pregnancy tests are very accurate. They are the same tests used in a doctors office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period. If you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. ...Read more
What is a reason for you to have 3 positive home pregnancy tests but a. Negative blood pregnancy test?
Possibilities: Here are a few possibilities: 1. You are doing the home test wrong --- letting it sit too long or have expired tests 2. You miscarried between doing a home test and taking the blood test 3. There is a lab error on your blood test. Try repeating the urine now since you have had a neg blood test. If positive then repeat the blood. Blood is the more accurate test. ...Read more
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