A 36-year-old female asked:
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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?

1 doctor answer
Dr. R. scott Thornton
41 years experience in Gynecology
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.
Answered on May 1, 2014

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A 37-year-old female asked:
Dr. Tracey Leaver-Williams
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No: Your Progesterone is low because you are very early in your pregnancy, unless you have had repetitive pregnancy losses.
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A 45-year-old female asked:
Dr. Ross Marchetta
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HCG doubling: Hi you are pregnant but the level should double about every 2 days. You should definitely be followed up with your OBGYN today.
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Dr. Mary David
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Hard to say: It is possible but not necessarily so. Supplemental progesterone may be indicated but any one test can certainly be wrong. It's not time to give up ho ... Read More
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A 37-year-old female asked:
Dr. Gurmukh Singh
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Inconsistent info: An HCG level of 8 is not diagnostic of pregnancy, the level needs to be 25 or greater. Your question was incomplete, but you need to repeat the HCG le ... Read More

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