Saturday, April 9, 2016

The TRUE Secret To The Digital Pregnancy Tests...and many others



If you've found your way here wonder about digital pregnancy tests please follow my Facebook page! 

Yes, there is that oh so famous website that is incorrectly informing us POAS-ers of how the digital pregnancy test works. I'm tired of seeing it referred to incorrectly, here is the real deal.

The patent mentioned on that POAS site does actually refer to LH but not for the digital pregnancy tests. It's a patent so it's doing its job of covering the broad range of things that any digital test can do, measure HCG, i.e pregnancy tests or LH i.e ovulation tests. Clear Blue's patent not only explains and covers the use of the digital pregnancy tests but also their digital ovulation tests. The part where it refers to a strip picking up LH is clearly talking about the ovulation tests.

I have quite a bit of experience with patents. They are extremely complex and hard to read, to people who aren't' familiar with them it's like a foreign language.

Therefore, that POAS site's example of "secret of the digital" is completely incorrect. IT DOES NOT PICK UP LH! I see this referenced everywhere in forums and it drives me mad!


The REAL scoop:


Q: Why are there two or three lines on a digital even when you aren't pregnant?

A: The digital pregnancy test, tests for the the "free beta-subunit and beta-subunit core fragment" not just regular HCG. It is commonly referred in the chemistry field as BhCG. BhCG is something that is "free" in your system at all times. It is also one of the first hormones to become elevated during early pregnancy; even as early as 3 days after conception.

Yes, you did read that right. Hyperglycosylated hCG becomes elevated 3 days after the fertilization of the egg!

The digital test has nothing to do with LH or ovulation hormones at all!

The second faint line that is usually always there is produced from free bhCG. It really may mean nothing if you have two lines on your digital pregnancy test.

Now, I'm not saying that having 2 or 3 lines on a digital pregnancy test does not mean you're pregnant. I'm just saying that bhCG is always "free" in your system. So lines on a digital will happen, regardless of pregnancy or not. The important thing to look for is the increasing intensity of these lines.

A big mistake people make with the CB digital hpt tests is testing and getting a "pregnant" and then testing a few hours later, only to see a "not pregnant". It's best to only test once a day with the digital test because of it's lack of sensitivity. 


A nifty little tidbit to add about the Clear Blue digital conception indicator tests; this is from the CB guide for the digital test with conception indication:

How the test works:

Unlike the traditional Clearable Pregnancy test, the new Clearable Digital Pregnancy Test with Conception Indicator contains two test strips – a low sensitivity strip and a high sensitivity strip. 
If hCG is present in the urine it will bind to anti-αhCG antibodies attached to blue dye in the pad.  As the hCG and anti-αhCG antibodies pass through the result line zone, they bind to anti-βhCG antibodies to form blue result lines. Both strips contain a ‘result’ line; the low sensitivity strip also contains a ‘control’ line. At low concentrations, hCG binds on the high sensitivity strip. At higher concentrations, hCG will alsobind to the low sensitivity strip. The concentration of hCG detected in the results lines of the two strips determines the result of the Conception Indicator: 1-2 weeks since conception; 2-3 weeks since conception; 3+ weeks since conception. If no hCG is present, the anti-αhCG antibodies attached to blue dye flow past the result zones on both strips, and no lines will be formed giving a ‘Not Pregnant’ result. If insufficient hCG is present, result lines may form but will be below the lowest thresholds set, and a ‘Not Pregnant’ result will be displayed.The lines produced on the strips cannot be read by eye. Instead, an optical system is used to measure the density of the lines. A red light shines onto these specific areas, and the light reflected is converted into an electrical signal.


Broken down into plain english:

2 strips, one high sensitivity - one low sensitivity
Each strip picks up and measures HCG
The low sensitivity strip detects of HCG and has a control line
The high sensitivity strip picks up low levels of bHCG

This part here: "The Test Monitors the control line on the low sensitivity strip and only when a valid control line has been detected will the result lines on both the strips be determined." I believe is where the discrepancy falls with CB digi tests. I believe that once the control line reaches a certain depth of color the optical light is triggered. Meaning that it's possible that the "result" lines may not have had enough time to darken to signal a "pregnant" when indeed the outcome was positive. This is represented by all the digital tests that are taken and "not pregnant" then put beside First Response when a clear pink test line is visible. Later on, the clearblue digital registers pregnant.


Last but not least pictures of "not pregnant" and "pregnant" results! There are pics showing very clearly showing 2 (or 3 in this case) lines when a no pregnant result was given. In some cases these people were pregnant, each pic will be marked with the outcome. Some will be consecutive pics, some will be alone, some are for the digital and some are for the digital with conception indicator, either way enjoy!




Low sensitivity strip on top and high sensitivity strip on bottom. This was a "not pregnant" result. Below is a day later with a "pregnant" result, strips are reversed.




Low sensitivity strip on top and high sensitivity strip on bottom (above)

Low sensitivity strip on right and high sensitivity strip on left (above)

Low sensitivity strip on bottom and high sensitivity strip on top (above)

Regular CB digital - All "not pregnant"
Low sensitivity strip on top and high sensitivity strip on bottom (above)


high sensitivity strip on top and low sensitivity strip on bottom (above)


Low sensitivity strip on top and high sensitivity strip on bottom



This is why two or three lines does not always mean you are pregnant. It's best to let the digital reader do the line analysis work. I know, that's no fun though!

Final word being; don't open the digital test (yeah right!) and if you do, two lines does not necessarily mean you are pregnant. It most certainly is NOT picking up LH either, see above.

If you have pictures to share; BFP or BFN please send them to me and I'll do my best to post them here!

Wednesday, October 27, 2010

Ferning after ovulation

So I've been doing a little research on ferning after ovulation. If you use a ovulation microscope you may be inclined to check for ferning after ovulation.
I've been interested this myself as there is a chance we may have caught that egg. Against Dr.'s wishes as I just had surgery 8 weeks ago.

So I've had full ferning or partial ferning since 5dpo, and I've been going cazy trying to figure out if it could mean anything.

Here's what I've found:

A positive reading on the maybe baby is a the apprearance of full ferning structures. These full fern patterns indicate that oestrogen levels are at there peak which occurs immediately before ovulation.

So if you are getting partial ferns at other times in the cycle this is normal because women constantly have oestrogen in their saliva throughout their whole cycle. so seeing patial ferns through your cycle is not an indication that there is anything wrong.

If however you get full ferns constantly throughout your whole cycle then this may indicate either unbalanced oestrogen levels whcih can be an indication of a hormonal problem such as PCOS, but this would have to be diagnosed with other tests as well, but it would give you an indication that there may be something wrong with your hormonal balance. But if you have been using the maybe baby regularly over consecutive months and this is the first time you have had full ferning continue it could just be freak occurance, so continue to test next cycle as per usual and if you return to your normal readings then I would think nothing to worry about hormonally.

Another option for this full ferning occurence even after ovulation has occured is because conception has taken place becasue oestrogen and other hormones will rise to sustain the pregnancy until the placenta kicks in to take over. I know you said you had intercourse about 5 days before ovulation well this could be enough to get you pregnant as sperm can live in the female reproductive tract for many days depending on how verile it is and how hospitable the vaginal conditions are at that time.

I would suggest you start testing with the pregnow pregnancy tests every 2nd day as these are ultrasensitive and can detect pregnancy from 7 days past ovulation or known date of conception date. So if your period is due MOnday it should start showing a light positive or maybe in the next few days. Morning sickness is caused by the change in hormones so it may be possible your symptoms are pregnancy related but you wont know until you start testing.


Well alright then. Not really a straight answer BUT it could indeed mean pregnancy. If you've gotten ferning after ovulation and been pregnant or not please comment and let me know!

Sunday, February 21, 2010

The OSOM HCG card, never an evap?

OSOM pregnancy test, that's what I'm using today among others of course. Here is the thing with the OSOM they do NOT give evap lines. Never have I even heard of an actual evap on one. Extremely early positives YES, even picking up chemicals YES, but never ever an evap. So what's the deal with my tests? Well I know it's barely possible for me to get pregnant so I'm having a hard time believing that I could actually be pregnant; a really hard time actually. So I'm thinking maybe these tests could of have changed? Maybe I just have a tiny amount of HCG in my system that these tests pickup? Maybe I'm seeing things? Maybe, dare I say that I could actually be pregnant?
Who knows...I want to add pictures to this badly but DH is home as it's a Sunday and I can only imagine what he would think if I started snapping pics of my tests that he doesn't even know I'm taking.
I do promise that tomorrow there will be pictures! As for now I'm calling these almost invisible lines a figment of my imagination.

7 or 9dpo??

I'm completely confused about what day I ovulated. Here is m chart http://www.fertilityfriend.com/home/OrganicMom. I'm seriously confused, I never really had a blaring positive OPK test and I was using the Cue II ovulation monitor. The Cue II proceded to give me low (peak) VJ readings on the days after we DTD so it was really hard trying to figure out what was a real low. I'm thinking that CD13 was my (peak) meaning I'd ovulate that day or the next; which I would believe except that I hadn't had a + opk yet. but the next accurate VJ reading I got was on CD15 and it was way up and it's been up since so I had to have O'd between CD13-15. That's a pain becasue I have no idea how many DPO I really am GRRR.

As if DPO matters anyway because I'm a crazy, insane, early tester. Well, this crazy insane early tester actually received my OSOM Genzyme HPTs the other day, three days ago to be exact.
I jumped up and took one right away, during the time limit and beyond it was clearly negative. I was what maybe 5-7DPO. BUT (drum roll please) after the limit, after it had dried, there was what I thought to be a faint line. Maybe, just maybe a line like where the + line should be. But I wasn't convinced because it seemed like it was too close to the control line.
I tested again yesterday and again a faint line...and I'm talking faint, so faint. It seemed that the first line was in the right place as this one had the same like but maybe a teeny teeny bit darker...just maybe.
Well, here I am today and of course I've tested and I'm now waiting until after the limit LOL to check the darn thing. As of now it's clearly BFN.

Friday, February 19, 2010

5DPO today

Today is cycle day 20 and I'm what I believe to be 5dpo. I'm not really having any symptoms so far, maybe a little tired but that always happens. It's nothing to really take note of.
I did bite the bullet and buy some of the genzyme OSOM tests so if by chance I actually am knocked up (highly doubtful) then I should be able to catch it by 8 or 9dpo. I'm very excited to have my favorite tests and I'll be sure to update with pics.
I did invest in a CUE II fertility monitor this month but it's very confusing and I think I'm just going to sell it; I'm not positive though.

It's now been nearly a year that we have been trying; in March it will officially be a year. Out of the 11 moths so far we've maybe missed 2 and had bad timing on 1 or 2. That leaves about 8 eight cycle with perfect timing and nothing. I know I don't get pregnant easily and there really isn't much that I can do as far as regulating my hormones or making them better. Possibly diet and exercise but I'm just not ready to go hard core with the exercise and my guess is that's what it would take.

My insurance no longer covers infertility treatment so I'm on my own, and let me tell you baby fever is kicking in; I'm not getting any younger! Nevermind the fact that everyone around me is pregnant and having babies. It's kind of depressing but I already have two beautiful children and If I can't have anymore then it's no big deal.

Thursday, October 15, 2009

6dpo no exciting results

It's 6dpo and no exciting results to report today. Tests are the same as yesterday; both negative.

Clear Blue again has a faint line but the equate look alike does not, I'm really starting to dislike Clear blue at this point.. You can see what I mean in the picture, there is a very faint line on the CB.

The reason I know it isn't an early positive is because, 1: I'm only 6dpo and, 2: the nurse told me that the other test WILL get positive before the Clear Blue so I'm expecting that to happen; provided I actually am pregnant.
I'm pretty sure I'm not preggo this cycle, I can just tell. I normally need medical intervention to get pregnant and i haven't received any so, my chances aren't very high...

Here is the pic for your viewing pleasure:

Wednesday, October 14, 2009

5dpo testing started yesterday for my clinical trial

OK, So today is 5dpo and it's my second day for testing with my clinical tests. Yesterday a 4dpo I obviously expected to see nothing; that's exactly what i saw, nothing.
I couldn't even see a hint of a line, not that I expected to, I'm just saying.
I completely don't think this is my month anyway so I'm not expecting a positive. My temps aren't higher than normal and i jut don't feel it this month.

It turns out that the avonno tests look and preform what seems to be exaclty like an Equate pink + | test, which I know to be super early tests. Apparently, this test is supposed to be even more sensitive than Equate.

Here is a pic of my tests from today:




The Clear Blue appears to have an extremely, extremely faint line at just the bottom half, which may not be visible in the picture. I don't trust or take any stock in Clear Blue at all as they have tricked me before. I will only believe a positive on one of them if it's a screaming one. the Equate look alike preformed flawlessly and gave me a clear negative.

Upon further inspection of the Clear Blue the very faint thick line has now turned into a more visible very thin line. Hence the reason to never look at a test past the time limit.

Clear Blue Digital w/conception indicator