It sounds like you're really early. I'd try to wait a day or two, and definitely take your next test with first morning urine. HCG, the chemical detected by pregnancy tests, is typically most concentrated in first morning urine. Good luck!
If there is a control band then the test works. If you got a positive even if it is faint then it is a positive you cannot get a false positive but you can get a false negative. Wait a few days and retest with first morning urine. If you are late on your period that's your other sign but if you are testing before a missed period then it may be the hormone levels are low. I'm sad so when I was testing I took a pic of my faint positive and typed false positive pregnancy test in google images and compared my band to others tests haha! I am definitely pregnant but the first test was very faint!