Invalid Result: The result is invalid if no red line appears in the control window (C), even if a line appears in the test window (T). If this retest gives you a not pregnant result and you have still not had your period, see your doctor 7. It’s also possible to get a positive test result and then find out later you are no longer pregnant.

Although you can test at any time of the day, your first morning urine is usually the most concentrated of the day and would have the most hCG in it. According to The American College of Obstetricians and Gynecologists, early symptoms of ectopic pregnancy include low back pain, mild pain or cramping, and abnormal vaginal bleeding. These are not false positives — they are true positive pregnancy results even though the pregnancy doesn’t continue.I’ve attached pics so you can see what it looked like just in case anyone is in a similar situation.

If there is no HCG present in your urine, and you are not pregnant, there are no antibodies to bind to the dye, so no line forms. Medical conditions: In some rare cases, certain medical conditions can cause a rise in hCG levels, even if you’re not pregnant. The test line may look the same as the control line (Diagram A) or it may be fainter than the control line (Diagram B).

The result is invalid if no colored line appears in the Control Line Region, even if a line appears in the Test Line Region. False negative results may occur when the levels of hCG are below the sensitivity level of the test. I had a bleed around the time my period was due, but it was very light so I suspected it was an implantation bleed (it was). A rational diagnostic approach to the “phantom hCG” and other clinical scenarios in which a patient is thought to be pregnant but is not. I don’t know what possessed me to do it but I shone my phone torch through the back of the test and it showed this weird mark that had no dye where the line is.

A false positive pregnancy test is extremely rare ("false positive" means the test is positive but you are not actually pregnant). As the purple fades the control line will appear as a strong line and the result line if present will appear below this. Some women who are more than 6 weeks pregnant may get misleading results due to high hCG levels (2 faint lines due to hook effect).The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. As the test progresses you should see the liquid moving up the test area causing it to go light purple. The result is invalid if no red line appears in the control window (C), even if a line appears in the test window (T). Obviously, everyone has a different idea of what a faint line looks like but we're talking anything from not very obvious to proper put-your-specs-on-and-peer-at – as you can see from our main picture of 6 different positive pregnancy tests (some done with multiple test strips) posted on our MadeForMums Chat forum.