Is this implantation bleeding or my period ?

So On Jan Was My Last Pack Of Birthcontrol Pills I m Irregular , I Didn t Have A Period Feb And March I Had A Small One On April Because I Took A Plan B I Had Spotting On May And NO PERIOD On June , Now July I Had Unprotected Sex The 8th And I Took An Ovulation Test 4 Days Later I Was Ovulating , I Started Feeling SUPER Sick Days After ; Nauseas , Headache , Cramps , Backpain , I Felt Like I Had A Flu , 6 Days Later After The Ovulation Test I Started Spotting Light Pink & Red At First It Was SUPER Light Pink, A Week Before I Can Get A Period , Could I Be Prego Or Its Just My Period ?