Is anyone sick of trying to find a partner? I've been saying this about evaps for years. You can sign in to give your opinion on the answer. But if it 's coloured – then HCG is present – in whatever concentration – because only HCG can bring about the colouration of pink/blue, depending on the test you are using. Take care - and lots of baby-dust - to all prospective Mums-n-Dadscredit to Roy Hopodopodopolis from the post on the link in the o/p. Ask the experts from the BEIS and EST here - £100 voucher to be won, Share your tips for removing household stains with Crown - £100 voucher to be won, Talk widget showing discussions of the day & trending threads, Subscribe to Mumsnet emails direct to your inbox. i had these tests but i got my af today so obviously evap lines. ? That looks like a line to me, looks very pink on my screen. And here is where we need to get onto the subject of the 'faint' lines and the 'evaporation' lines that people keep talking about. Thanks, Thank you! I had 2 neg hpt's, so I don't know whether this one is any different. Join Yahoo Answers and get 100 points today. I have had 5 IC's with faint lines and 2 superdrug tests with faint lines. If you think the line is a faint positive, the best next step is to repeat the pregnancy test. Then the 'concentration gradient' ceases and the 'diffusion' will stop. However, if you do a test and you get the faintest coloured line in the 'pregnancy' test-strip/assay area on the test, then HCG has definitely been detected. And on contact, two different molecules form a 'complex' which changes both it's shape and it's colour – hence the coloured control lines you see in the test areas. This process of fertilisation, followed by a very early termination is known as a 'chemical pregnancy', and many women can have these, whereby the woman is sure she is pregnant, but then she later has a period – even though a home pregnancy test might have shown a faint or clear line in the first couple weeks or so – and hence is why some women are left wondering why their period returned. Only the HCG can combine with the pregnancy-assay molecules and bring about a colour-change.
However, remember that the area of the test-stick that you 'wee' on is made of a very dense material, and urine will be absorbed by this dense material and will travel along the test-stick by 'passive-diffusion'. Because tests are typically meant to be read three to five minutes after they are taken, the tests are still damp at the time they are read. So then, if no conception has occurred, then no HCG will be produced by the body, and therefore, no HCG will ever be found in the urine.
(some tests are more sensitive) If not, use the same brand you got a faint positive with and test again in a day or two, if it was indeed a positive, the line should get darker as the hcg levels get higher... Best of luck! If you're trying to get pregnant, get support from others doing the same here. But whatever the concentrations, provided you get a colour in he 'pregnancy' area, then you are pregnant at the time of testing. When's the best time to get pregnant? How many presents do you buy for your children. They simply are not as common as mumsnet would have you believe. Therefore, even if the HCG levels are virtually undetectable (but present in minute quantities), as the urine travels over the pregnancy-assay, the HCG will still be attracted-to (remember the 'chemotaxis' we talked about earlier) and will bind with the molecules in the pregnancy-assay – hence a positive coloured line showing up to several hours after the test was done. And for the record, my Wife's test had a coloured line several hours after we did the test – and I knew she was pregnant – despite the articles I read on the internet about evaporation lines. It's so hard to know! To wonder how men and woman actors do sex scenes? What dpo did you take test mine was 10-11dpo and was as faint as yours and was also a superdrug test. An evap line (evaporation line) is a faint line that appears after a negative test has dried. depending on the test you used). GOOD LUCK 2 uuu! This is the superdrug one out of the case! I also had 4 negative tests with my son before I got the positive...a week later! And finally, some tests don't dry out for days – sometimes many days (especially those that you put the caps back on) - so the water-content of the urea has not even evaporated – yet people still go on about 'evaporation lines' – which, in my opinion, is nonsense. Mine has been on there for 3 days, and doesn't look like it's going away. Fingers crossed they progress x. I know this post is a bit old but i took 2 tests, nothing within the 10min window but a few hours later I have 2 posistive tests. Evaps don't have colour to them and tend to appear after about 10 mins x. Superdrug test defiantly looks positive to me, mine looked like that at 10/11dpo with my last pregnancy and I now have a beautiful 11 month old lg. awesome, and also very hopeful and inspiring! Share with Nintendo - £100 voucher to be won, Do you have questions about the Green Homes Grant? Moving on... sometimes fertilisation occurs and HCG is produced for a while, but for some reason, the body detects that the pregnancy will not be successful (not 'viable') and the fertilised egg ceases to continue to divide and develop. Can you see the line? Anyone had an evap line on First Response? Changing the subject slightly, if we take a pure white tissue and add one drop of water onto it, the area of the tissue containing the water will now have turned slightly 'grey' – because it's wet.
Do Evap lines disappear? If the faint line showed up BEFORE the time limit of the test, then it is a positive and you are pregnant. I really hope its a positive for you. This is page 1 of 5 (This thread has 121 messages.). And in most cases, test-sticks – especially those with caps on – can stay wet for days! evaporation lines generally dont have color. However, for those women whose egg(s) is fertilised, and for whom the pregnancy continues, then they will continue to produce HCG from the moment of fertilisation, and, those levels of HCG will rise over the coming weeks, and will, at some stage, be readily detectable either by home pregnancy tests, or by blood tests via their local Doctor or Clinic. Only the HCG can combine with the pregnancy-assay molecules and bring about a colour-change.
Were the negatives you got with the same brand as the one faint result? depending on the test you used).
I still have my tests from both my pregnancies and both positive lines are still there. Is 33/34 too late to have your first kid? So let's not have any more if this 'evaporation line' confusion. An evaporation line is a slight streak that appears where the positive line on a pregnancy test should be.
I've been having lower cramping, tender breasts, peeing all the time and my emotions are all over the place. On any blue dye test, I would always get a faint blue 'positive' line. An evap line on a pregnancy test means nothing, so it has to be discarded.
I have also been trained in the medical micro-biology (lab-testing).
Hi ladies, I have a quick question, do evap lines on pg test disappear after a while? There's nothing wrong with blue dye tests either other than a grey 'wet' line may look bluer than it does pink, thus making people unsure if it's actually a bfp.
No other molecule or hormone will cause it to change colour. However, until the pregnancy stops, the woman will still be producing HCG, and may well have some of the other 'usual' symptoms of pregnancy (though some women have absolutely no symptoms for a considerable period of time), and; although the pregnancy may have stopped almost as soon as it began; it may still take a couple weeks or so for all the HCG in the body to be disposed-of via the urinary system. 2 answer your question no they don't go away as far as I know. It depends on the chemical makeup of each woman’s urine. Get answers by asking now. You see I don't really know as I wasn't using OPK's as it was only a few days after AF. Think it was 11/12dpo! What makes me doubt they are posistive is that the vertical line is very thin, but still blue.? This happened perhaps 10 seperate times (different months) and I was never pregnant at any point in those cycles.3 DC down the line I know now to avoid blue dye tests when initially testing for a pregnancy. No matter what stage of trying to conceive (TTC) you're at, read our. Thank you! Do they go away? Hi, I took a test and it’s confused me. To use this feature subscribe to Mumsnet Premium - get first access to new features see fewer ads, and support Mumsnet. After this time frame passes, the urine in the test dries. http://www.madeformums.com/forum/pregnancy/confusing-pregnancy-test-result-help/160517.html. However, if the right molecules are not present in the urine, then no other molecules can bind to the control molecules – and no colouration will occur – so the test will be 'void' – and another test should be done. I don't know how many dpo I am or anything! Isn’t the elephant in the room with schools the parents mixing at pick up and drop off? Also, it may still take a couple weeks or so for the 'symptoms of pregnancy' to stop altogether. This post has put my mind at eAse been getting very faint but BLUE lines on Tesco tests for a couple of days, but doubting myself. Whether you've just come off the pill, have been trying for a week or a year, or are trying after a miscarriage, you'll find friends here. I didn't know if these lines were Evaps or not and was wondering after a period of time do Evaps disappear as the lines are all still on my tests? So, if after an hour, or several hours, you have a coloured line in any way, then HCG has been detected – and HCG can only be found in your urine if an egg has been fertilised. hCG levels in the body typically double every 48 hours. Okay, my faint line on my hpt may mean an evaporation line, but what I want to know is "Do they go away after a while, or do they stay like a real positive line". So the pregnancy stops. Looks like a pinkish line to me but hard to tell on the screen, Not even a vague line.
It does not indicate pregnancy and is merely a result of evaporation. And now for the famous 'evaporation lines' that so many people – and 'experts' talk about. Read the most amazing comment written by a man about pregnancy tests!! My evaporation line had blue in it from the blue dye and I got all excited but it was nothing see as AF arrived yesterday! So for those women whereby, unfortunately, fertilisation has occurred, but the pregnancy was not viable, they were pregnant, but the pregnancy stopped. I had a false positive after the 10 mins b/c of the evaporation line. My evaps always stayed. Indeed, they are attracted to each other by a process known as 'chemotaxis'. Blue dye tests still do read sufficiently positive in a genuine pregnancy, but the squinting and anxiety when first testing was made worse for me by using them. To start-with, no evaporation line will be coloured (pink or blue etc. So if the line is coloured – no matter how faint the line is – then HCG made the line change colour – nothing else! If you are seeing "faint" pink or blue then its probably a positive. What do you think of the answers?
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