Implantation bleeding or no??

elisabeth

Ok ladies I need some help! I had my period about 2 weeks ago! 2 days after I started bleeding again but very light not enough to fill a tampon up! Its been a 1 week now! It’s dark brown to black then it’s dark red to light red! I took a pregnancy test the first one had a faint line and the second test said negative not sure what’s going on and going on 2nd week of lightly bleeding! Can anyone help please! Very confused!?