unsure😭

Lindsey
I took one first response test yesterday morning and it was faint,but positive.two clear blue tests earlier today and they said not pregnant. One DG brand just now around 9:30 and it said negative. 
What should I do ?/:  could I be to early(if I am) that most tests can't see. And maybe got lucky with the first response test? Should I take more tests or lose hope? /: