So I got a faint positive Sunday the week before I had very light bleeding and then it stopped I…

So I got a faint positive Sunday the week before I had very light bleeding and then it stopped I tested on Sunday and there was a faint positive well Monday I started bleeding again lightly but now it's picking up more I was gonna test this Sunday to see if there was a darker positive I just had a baby about a month and half ago I have no clue what's going on had this happened to anyone else