Could i be pregnant?

No one seems to reply to my posts so I've done a poll.

Ovulated and had sex on 16th July also had ewcm. The following week on Sunday the 24th I started very light pink spotting so I'm thinking implantation bleeding right? But it has continued to be on and off each day up until yesterday but it varied from pink to red to brown and only when I wiped, not each time I wiped though sometimes its there sometimes its not.. AF was due yesterday did a test yesterday was negative with tesco own brand.

Basically I'm asking - could I be pregnant even with all this weird spotting?!

Vote below to see results!