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A big positive pregnacy test, and blood test negative?

Toda I'm in my 13dpo and yerstuday I did a pregnacy test actually I did two preganacy test and both came positive,, one of the pregnacy test was from a dollar store and shows a faint positve line, the other one was first responde 4 day before period and came positive a big positive blue line,,,today a did my blood test and came out negative how could that be possible if my urine test shows positive I don't understand,, a few hours ago I did another pregnacy test first responde early test and shows a little faint line I'm supposed to get my period on two days,, I'm really confused

7 Answers • 9 years ago


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member

As far as I know, first response are all pink tests? Are you sure it was first response you were using? The blue dye tests can give very convincing looking false positives, if you are seeing a strong enough looking line, why not use a digital test? If it comes back positive, bring it to your Dr, and get another blood test. Your HCG is higher in your blood than urine so there is no way you can have a positive urine test and negative HCG. Some Drs count a low HCG level as not pregnant until it reaches a certain threshold, so if that was the case your level should be higher after a couple days.

9 years ago


Sorry the test that I used is a equate early result 5 days and the lines we're blue

9 years ago • Post starter


I wich I could share the picture ,, so you could see ir,, I just posted on pregnancy test gallery, , look for my picture to see it

9 years ago • Post starter


member

Just saw it! That looks positive to me, but I've seen some mean blue dye evaps. I would definitely grab a digital and see what it says :) Good luck to you!

9 years ago


member

Qualitative blood tests usually need an HCG level of 30 to be "positive," while urine tests can be much more sensitive. I have heard of some picking up HCG levels of under 10! So it is definitely possible to get a positive HPT and a negative blood test, especially since it is still early. I would continue doing the home tests maybe every other day, the same brand, and see if the line gets darker. If you are pregnant you should be able to test positive with blood very soon, since the HCG doubles quickly. It's too bad they didn't do a quantitative blood test to see exactly what your levels were, if they were 29 then it would be "negative" but you'd definitely be pregnant. GL! :)

9 years ago


Hi sarita same thing is hapend me before 1 year back. go for transavaginal scan.it shows every thing.Dont panic and all the best

9 years ago


member

If you are that early in a pregnancy a scan would not show anything and would probably cause unnecessary panic.

9 years ago


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