Faint positive and spotting

Holly

I was supposed to start my period on Friday. The Wednesday before I started having clear mucus like discharge with dark brown streaks in it. That has continued through today. I took a test and got a faint positive twice now. Has anyone ever experienced this at the beginning of pregnancy? I know implantation bleeding should not last this long. I miscarried March 13th then had a normal cycle in April. I have never experienced this before.