Because hCG is present in urine and is responsible for giving positive or negative results, it becomes diluted and the test fails. If your urine gets diluted and turns a pale yellow or clear hue, it indicates that your hCG level has decreased. This means that you are not pregnant and need to take another test in about three months. If you are still trying to conceive and think that you may be pregnant but the test was too easy to read, then you should wait before taking another test. It is normal to get a false negative result once in a while- that is, to test negative even though you are actually pregnant. A false negative result can happen for several reasons. Sometimes the cause of the problem is obvious - like if you have blood in your urine because of a urinary tract infection (UTI). Other times the reason might not be clear until later. For example, if you drink alcohol regularly and then don't eat meat for a few weeks, your body will start using other sources of protein instead. This can cause a rise in hCG levels but because the urine is diluted, the test won't show this increase. It is important to remember that a negative result does not mean that you are definitely not pregnant. A lot of things can cause hCG levels to go up even when you are not pregnant. So if you want to be sure, try again later.