So, I got what I thought was AF. It's been a very dark red and brown mixture, and not even enough to have to change my tampon very 3/4 hours. No cramping or anything. Just the blood. I had one last test that something told me to take. It was taken with SMU on about a 2 hour hold. I took a digital tonight after work on about an 8 hour hold and it said not pregnant. Should I test again or what? The pic was taken at the 5 minute mark. Please help! :(