3 faint positives

Amber

I bought a 3 pack test from walgreens (blue dye) and all had faint positives.. I took one every first morning pee fri, Sat darker then the other two ,and sun but Sunday i notice some blood only time I wiped tmi sorry but now I'm nervous because i have left lower adominal pain .. Am I having a miscarriage ..can someone please help me I'm going to the dr in the an