Help!! So confused

My expected period was supposed to show up yesterday but all that happened was a little blood when I wiped then went away. Today same thing blood when I wipe and it’s slowly going away. Also some tests would come out with a faint positive and other negative with fmu. My boobs have been sore for two to three days now. I’m so confused. I don’t know if I’m pregnant or not but I don’t wanna get my hopes up. Someone please help!