My period is due in 3 days and I've done 4 first response tests from around 9dpo and all bfn. I feel like I've got slight cramps in my belly, which feel like it could be start of my period. I'm really now starting to think this month isn't my month, but now I had a day of spotting a brownish blood 7 dpo, which I originally was hoping was implantation! But now it's not looking hopeful that I will get my bfp this month. Has anyone else experienced this spotting which you thought was implantation bleeding? I've done a clear blue early detector today which was negative, so I really think it would have picked up if I was pregnant?