2 positive then...! 😩 PLS HELP 💔

I had in day 2 of late period and day 3 positive results (faint lines) 
On the 4th day of late period I changed the testing brand (took clear blue) and it came negative...
I'm worried been having many symptoms and now I think I caught cold! (Only fever and blocked nose no coughing thank god) shall I take regular meds or stay aware? 
FYI 
(On day 32 before period - cycle 32 for me - I made a hormonal blood test there was no signs of pregnancy) then made the first test after 2 days.Â