PREGNANT OR IMPLANTATION BLEEDING???

Hi my LMP was 7/14/2016 me and my husband been having sex everyday because we TTC baby#3 the 28th day I was spotting brownish/pinkish light blood sorry TMI) only when I wiped was gone in hours but this was the time i ovulate that time but I never had this before my period my next period is in 5 days I have a normal 28 days cycle but my question is can I have implantation bleeding time I ovulated??: I took a clear blue test today BFN but I turn open the test because I read reviews on clear blue giving a false negative they saw two lines I saw two faint lines... I feel pregnant all the symptoms peeing more often, headache, cramping, backache, food cravings, moody, very sleepy, I do get that way two days before my period come but not 3 weeks before AF. I have noticed my period last month was light only last 3 days normally is last 4 days I didn't need a pad I'm confused can you see two lines???::... Was to early I test or the clear blue gave me a false negative that I'm really pregnant please HLEP!!!!!!!!!!!!