28 DPO AF 13 days late BFN

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I’m 28 DPO with my period late 13 days, and last test was on Sunday with a BFN. Could I be pregnant? I had all the pregnancy symptoms, fatigue, cramps, breast soreness with veins popping up on them that having been there before. This would be my first, and DH and I really want to be. Blood test was negative as well, but my mom told me it took a while for her to get a positive while pregnant with both my brother and I.

Am I crazy in still hoping? My doctor wants me to wait two more weeks then come in for a blood test.

Let me know your thoughts.