HELPPPPPP

Okay here's the story, two days ago I took tests 1 & 2 and I thought for sure they'd be negative so I didn't give them a second thought, watched the line go across the test line came up and I thought of it being negative and put them down. Today I picked them up and SWEAR I can see a faint line on both. IM AWARE that it's been well over 10 minutes and I shouldn't stress over this blah blah blah. SO tonight I took test #3 and I don't think I see ANYTHING. However I am 3 days late on my period. Advice please?