Anyone had a BFN on 14 dpo and was still pregnant?

TTC is so stressful. My hubby and I have been trying since august. Had a miscarriage in November and still trying. AF is 1 day late and I’ve been having what I thought was pregnancy symptoms ( nausea, bloating, mild cramping) but still testing negative. I had a BFP 4 days before my period in November before the miscarriage so just wondering what the chances are that I could still be pregnant and testing negative at 14 dpo. I know it’s unlikely but I still have hope. And if I’m not then where is AF! So frustrating!