clearblue digital

[Nataliexx]

I tested with Clearblue digital about 2 hours ago... It cam up not pregnant so i took the test out and there was 2 lines? I did some research on the net and have herd not to to read the test result only what was on the screen. But i read the leaflet that came with the tests and it says nothing about not looking at the test or having two lines...

[Dansta]

from what i know the diggie tests always come up with the two lines. even when its a BFN if that makes sence? i personaly havent used one, but thats what i've read...maybe try a normal two line test to see? (first response is really good for an early test) HTH

[Nataliexx]

from what i know the diggie tests always come up with the two lines. even when its a BFN if that makes sence? i personaly havent used one, but thats what i've read...maybe try a normal two line test to see? (first response is really good for an early test) HTH

I have read that too... But wouldn't you think they would say that on their leaflet? lol

[didispunk]

The 2 lines indicate how much LH is in your urine/body and since we all have LH in our bodies all the time it differs for everyone. The 2 lines mean nothing. I got a BFP with a digital and there was only 1 line.

Good luck

[mzcatieboo]

i did a digi test and got 1 line the first time and it was negitive and then i tested 5 days later and got 2 lines and PREGNANT on the screen.

good luck

[Nataliexx]

The 2 lines indicate how much LH is in your urine/body and since we all have LH in our bodies all the time it differs for everyone. The 2 lines mean nothing. I got a BFP with a digital and there was only 1 line.

Good luck

I have the australian one which says it only detects HCG. Wow this is confusing lol

[Nataliexx]

i did a digi test and got 1 line the first time and it was negitive and then i tested 5 days later and got 2 lines and PREGNANT on the screen.

good luck

Thats what i thought was suppose to happen

[Dansta]

yeah, you'd think. but the agian i think HPT are made by men so they leave out the most important details

[didispunk]

Just to clarify....

Most HPT's are pretty straightforward. They detect hCG (human chorionic gonadotropin, the "pregnancy hormone") in urine. If hCG is present, 2 pink lines (or a blue + sign) appear in the results window. If hCG is not present (or present in such a teeeeeeeeny tiny amount that it's not yet detectable), only 1 pink line (or a blue - sign) appear in the results window. The problem with this is, of course, that a hormone-crazed woman must read the results accurately. And for some of us, reading the results accurately means refraining from photographing in high resolution and adjusting color contrast, balance, solarizing . . . disassembling tests and holding them up to windows and/or halogen light bulbs . . . begging the test to cooperate and produce a second pink line . . . I digress. The point is, the tests results require interpretation and face it, there is some ambiguity in faint lines, time limits, evap lines, etc.

So the Clearblue Easy Digital (and e.p.t. Certainty) take away the need for interpretation with a digital display that says either "Pregnant" or "Not Pregnant." No lines to analyze. No color adjusting. No halogen bulbs. NO FUN!

When the test strip is ejected from the digital reader, however, there are lines on it. And, because it's in our nature, we peestickaholics ("Hi Meg!") want to analyze those lines. The test instruction booklet says the lines "must" be disregarded. But . . . why? Doesn't the test work the same way as every other HPT? Don't 2 lines = pregnant??

Back to the test.

In simple terms, the digital test stick sucks up urine like a "regular" HPT. The test has a control line like every other HPT, to indicate the test worked properly. Then there is a "results zone" where a second line may or may not appear. Here's the difference: the second line may appear even if you are not pregnant, because the antibodies in the "results zone" are NOT testing ONLY for pregnancy hormone. Drumroll please. The "results zone" detects not only hCG (pregnancy hormone) . . . but also LH (luteinizing hormone.) LH is found in women's bodies almost all the time in some quantitity. (See the Fertility Info section for the nitty-gritty.) So, depending upon where you are in your cycle, how much LH your body produces normally (which can be thrown off by conditions like PCOS), you may see a second line even when there is no hCG ("Not Pregnant.")

Next question: Why does this HPT detect LH as well as hCG? After all, the presence of LH (or lack thereof) has no bearing on pregnancy detection.

Well, the best I can do there is quote the patent itself: "The determination of the presence of more than two (is multiple) [sic] analytes in any sample may have significant clinical utility." (Then it cites some examples in tests for heart disease and diabetes.) It does not elaborate further on the hCG/LH connection . . . so, in light of the fact that Clearblue just came out with a (disposable) digital ovulation predictor kit, my guess is the technology is the same in both tests and the company can use interchangeable parts and have the same patent cover both products.

Last question: How does the digital reader know what the result is? Here's the patent again: "... a standard curve can be generated by running strips with samples with known concentrations of E-3-G BI [the antibody "****tail" with the dye/antibodies that detect the hCG and LH]. The colour at the immobile zone can be read, for example using a Minolta chromameter, and the concentration of E-3-G calculated by extrapolating from the reflectance value." In other words, your pee reacts with the reagents, makes a line (or doesn't), and the digital holder reads the specific intensity/color of the line, NOT SIMPLY determining whether a second line exists. (A "chromameter" just measures the shades of various colors-- so when teeth-whitening products say they'll lighten your teeth "at least two shades," they're basing those measurements of shades on a chromameter's reading.)

To recap: most women will normally see 2 lines on the Clearblue Digital test, pregnant or not, simply because of the normal, average, boring presence of LH. Our naked eyes cannot determine the "shade" or "intensity" of the second line, meaning our naked eyes can't make heads or tails out of the result. When the display says "Not Pregnant," believe it, until proven otherwise. (Note: Clearblue publishes the sensitivity of the digital test at 50 mIU/mL, but when questioned on their 800 line, they say 25. e.p.t. Certainty publishes their sensitivity as 50 mIU/mL as well. See the HPT FAQ for more info on why different tests work at different times-- and also why it is possible to receive a negative result and still be pregnant.)

[Fruit Tingles]

Personally?
I wouldn't bother with digital tests. From my experience, they are crap. I was 12 weeks pregnant, and I knew it, when I took a digital test, coz it was there and would have been wasted if I didn't use it.
So, at 12 weeks pregnant, the digital test told me "Not Pregnant" which put me in a panic thinking that something had happened to baby. Well, baby was fine, the test was just dodgy.

[Sequoia]

I love the digital HPT's, I've only ever gotten 100% accurate results. But to the OP, the instructions on my ClearBlue Digital say to disregard the lines and to only take notice of the PREGNANT or NOT PREGNANT result.

Good luck TTC!

[Nataliexx]

I will upload a pic

[Nataliexx]

These pics make it look like its faint but it is A LOT darker in person
Oh and dose it matter if i peed on the stick then stuck it in the reader? I am suppose to do it the other way around
Thanks

[Sequoia]

Oh and dose it matter if i peed on the stick then stuck it in the reader? I am suppose to do it the other way around

Short answer, yes.

You are meant to unwrap the POAS bit and insert into reader until both arrows meet and you hear a 'click'. Then a flashing icon starts up and that's when the test is ready to use.