Whay does a faint negative line on pregancy test ?

Re-test in few days.: The concentration and amount of your urine on the strip may affect the intensity of line appearing in the result section. It you can see the line as negative, it is highly likely negative, as these home tests are quite good/accurate. If in doubt, you can retest in a few days... Good luck...

Retest: If you had sex since your last period and missed your period by 4-5 days, do a home pregnancy test. If the result is negative repeat the test 4-5 days later unless you get a period by then. Use first morning urine and follow the instructions for the test carefully. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD.