Yes still a chance hun.I'm in the EXACT same situation except I did my clearblue at 11dpo with evening wee. I have done ic's since then but all been bfn. I'm not feeling very hopeful though I didn't get my bfp with ds#2 until I was 16dpo I had tested at 14dpo but that turned out to be a bfn.
Fingers crossed that the witch doesn't arrive and we get ourselves a lovely bfp