Ok so I'm mega confused...


I took a test 2 days ago and it had a faint line almost looked like a evap line... so I took a couple clear blue tests yesterday and all have a very very faint line, however i have took a first response test this morning and it looks negative.... can someone please help me!? What is going on ?? I'm 3 days late for AF, surely if I was pregnant it would be a bold postive by now . . . . Can they all be evaps ?

Thanks in advance I'm loosing my head