It is definately possible, especially so early. I think only about 10% of women get a bfp before 14dpo. With my previous 2 pregnancies I got a bfp at 9dpo. I am also on 10dpo today and got a bfn this morning. So for me, I'd say that's a definate but everyone is different. I know there is one BB member who took weeks to get a bfp, even after blood tests had confirmed her prg.

Good luck, I hope things turn around for the better!