Urine pregnancy tests

How common is it for HCG not to make it in to a woman's urine?
I've heard that some women can't get positive urine tests and need to do a blood test.
Why is this?
& How common is it?

1 answers

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ANSWER #1 of 1

It depends when you concieve because the further into your pregnancy you are the more HCG there is. At 18 days after conception there is a 1% chance that it wouldnt pick up the HCG. Go to your doctor thats what im doing! I dont trust them!

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