Community post

Normal hcg levels for early pregnancy?

I took a test at 9dpo and thought it was negative. After getting a positive today at 13dpo, I looked at the first test again and I think it's positive (obviously it's pretty faint if I didn't even see it before). The test I used had a sensitivity of 25miU/mL so with my levels doubling every 48 hours it so, they should be around 100miU/mL. But my blood test revealed that they were only 51. Is this normal? Is it possible to have an extremely faint positive on a test when you're levels are slightly lower than the sensitivity of the test? If not, is a doubling time of 85 hours an automatic bad sign?

1 Reply • 11 years ago

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