How do you know if an evaporation line is faint or positive?
It's also important to note that while an evaporation line appears faint, a faint test line on a pregnancy test doesn't automatically suggest an evaporation line. A faint positive test line can also appear if you take a pregnancy test shortly after implantation when your hCG level is low, or if your urine is diluted.
Can an EVAP line be blue clear blue?
On a blue dye test, the line can appear as gray or even a lighter shade of blue. (Note: For some reason, anecdotally, many mamas find that blue dye tests are more prone to evaporation lines.) Sometimes, though, the evaporation line appears as a colorless streak, almost like an indentation.
Can a clear blue test give a false positive?
Most home pregnancy tests are reliable, for example Clearblue's tests have an accuracy of over 99% from the day you expect your period, and while it's possible a test showing a negative result is wrong, particularly if you're testing early, getting a false positive is extremely rare.
Do Clear Blue pregnancy tests have evaporation lines?
Just wanted to put that out there – evap lines definitely DO happen and they CAN be blue and look very much like a positive, but it's not actually a positive. Good luck everyone!
Do evaporation lines disappear with water?
Unfortunately, evaporation lines will not disappear, even when you try to remove them with water. If you are not confident with the pregnancy test result, it's highly recommended that you take another test, taking care to follow the instructions properly, to avoid a false positive pregnancy test result.
What does evaporation line look like clear blue?
What does a faint line look like? Each pregnancy test is different, with some brands using a red dye and others, like Clearblue, a blue dye. For a red dye test, a faint line will look light pink, whereas a blue dye test will produce a light blue line.
Can a faint line be a false positive?
Drinking a lot of liquid before testing can leave you with a faint positive line, or if you're testing early, even a negative result. It may be easy to think a faint line is a false positive, but it's very, very rare to get a false positive result.
How common are evaporation lines?
An evaporation line on a pregnancy test is basically a false positive. While true false positives and false negatives are fairly rare,1 the evaporation line is the closest most women will come to having an error on their pregnancy tests.
Can an evaporation line be blue?
While an evaporation line can appear on a pink or blue dye test, many frequent testers on popular online pregnancy and fertility forums adamantly argue that blue tests are more prone to these deceptive shadows.
What does an evaporation line look like on clear blue?
Each pregnancy test is different, with some brands using a red dye and others, like Clearblue, a blue dye. For a red dye test, a faint line will look light pink, whereas a blue dye test will produce a light blue line. See images below to get an idea of what a faint line can look like.
How long do EVAP lines last?
Evaporation Lines This usually ranges between a couple of minutes up until 10 minutes later. If you see a positive result beyond this time frame, you may be left second-guessing the results. However, the false-positive reading, in this case, is due to something called an evaporation line.
Can a evaporation line be blue?
While an evaporation line can appear on a pink or blue dye test, many frequent testers on popular online pregnancy and fertility forums adamantly argue that blue tests are more prone to these deceptive shadows.
How fast do evaporation lines show up?
Evaporation Lines This usually ranges between a couple of minutes up until 10 minutes later. If you see a positive result beyond this time frame, you may be left second-guessing the results. However, the false-positive reading, in this case, is due to something called an evaporation line.
Can evaporation lines be blue?
While an evaporation line can appear on a pink or blue dye test, many frequent testers on popular online pregnancy and fertility forums adamantly argue that blue tests are more prone to these deceptive shadows.
Why do blue dye tests give false positives?
That's because blue dye tests are notorious for evaporation lines. These evaporation lines tend to have a grey tint because of the blue dye running across during the testing process. This can make them look like a faint positive when, in fact, no HCG was picked up.