Implantation bleeding?

It could be but last month I went through the same thing. I was bleeding a week before AF was due and got super excited and then when i was due for AF it started. Our bodies are really odd if you ask me and hope if you want to be pg, you are! GL - the only thing that may have been a issue for me is I had an HSG on the 7th, so may have been the reason - GL!