WHAT IS GOING ON!!???????????

Alex
Please help!!! 
WEDNESDAY AFTERNOON - ( 2 days ago) 7DPO - noticed a faint line on test done a few hours ago -see below 
WEDNESDAY night - clear blue non digital taken - negative 
 
THURSDAY MORNING ( -see below) 8DPO - 
VERY Faint postive - first response used. 
THURSDAY NIGHT 8DPO - another clear blue taken -negative 
Another cheap one - negative 
But Wednesday test has turned slightly positive 
See below (top test vfl)
Bottom one is wednesdays test 
FRIDAY MORNING 9DPO 
- clear blue digital done with first wee - not pregnant 
Wednesday tests at the top
Thursday night test in middle 
Friday morning test end