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.

Related Questions

I took 3 first morning urine home pregnancy test so I had an BHCG-QUANT blood test done and it came back <5 but with no number as to what it was.

Undetectable level. . Anything <5 usually doesn't get reported because it's undetectable. In some places it's reported as <2 but regardless it just means that the test is negative. . Read more...

I have my tubes cut burned n tied took a home pregnancy test n it came out positive took a urine and blood test at dr n came out negative. Why?

Blood most accurate. There is a small chance a urine pregnancy test can be a false positive - very small, but still possible. A blood test is much more accurate, if there is any question. Read more...
Test error. No test is 100% accurate; the error may lie in the manufacture of the kit, a mistake in how you used it, or some other problem. If you have had your fallopian tubes severed and tied off you are most unlikely to get pregnant so you don't even have to test. Read more...

No period for 2 months. 3 home pregnancy test and blood test, all came back negative. Active person. Run and lift weights 6 to 7 days a week. Help!!

Not Pregnant? Hormonal testing is needed to evaluate why you have not had a period. Thyroid testing is at the top of my list, and checking your Estradiol, Progesterone and Testosterone levels. Checking for signs of diabetes associated with PCOS or Metabolic syndrome also top the list. There are many other problems that can cause it, with Pregnancy needing to be eliminated first and foremost. Read more...