What Does Faint Positive Line In UPT Indicate?

hi, me and my husband are trying to get pregnant, my lasy period was on 26th Apr, i had light spotting on 26th may till today, 5 days, i still have spotting, brown at first, but turn to watery red, no cramping, no pain, no breast tenderness, tested urine test, showing faint positive...pls help..i am confused