Yesterday I was 11 dpo and I've had cramping for a couple of days. I really thought AF was coming last night so I went to the toilet and held a tissue for a while and got the tiniest streak of blood in what looked like ewcm (not much of it though). I did this twice within an hour and went to bed wearing a pad fully expecting

to arrive during the night. She hadn't by this morning so I took a test (which was negative). Now my question is how likely is it that this could be implantation? Aside from cramping I have no symptoms whatsoever. With my first pregnancy I had the most painful bbs from the first day AF was late.