Faint lines during AF

last night I wiped after using the restroom and it had cleat mucus with light pink blood streaks. I decided to test and got a faint positive. But it showed a couple hours after I went to the bathroom again. I didn't bleed anymore that night but the next morning I had a normal period. And decided to buy another test. Which was also faint. Don't know if I miscarried or if I was never pregnant. I did have three first response test a couple weeks ago but all had very very very faint lines! and doctors took a urine sample and said I wasnt pregnant .