Confused… any hope?

my period was due on Wed but it never showed so I took a test Thursday afternoon ( only held my pee for 2 hours) and it was very faint but positive well on Friday I started to have a good bit of brown discharge and some bleeding when I wiped but today it’s slacked off and some bleeding when I wipe but it’s still some brown discharge.. I took this today and it’s def a lot darker and def positive. What is going on? Is this a bad sign that it was so faint on the day after my period (Thursday) and now today it’s getting darker? miscarriage? i have had my daughter, a miscarriage, my son, and then a miscarriage this past March at 9 weeks.. thoughts?? Has anyone had this happen with the discharge and some bleeding and it turn out okay ??