Miscarriage? ????😭

I got a very, very faint line on Tusday and negatives since. I've been having white discharge (the color of milk) there's no smell (which is good 😊)I have a uti so that conurned me. ...Anyways the past 2 weeks I've been cramping on and and off, but nothing since yesterday . I've gotten a VERY small amount of pink blood (A small dot) and AF isn't due until the 16th...Oh and all tests were from the $ store. What are the chances of pregnancy anymore?