8-11 DPO still BFN

hopeful 🙏🏼

Does my bbt chart look triphasic? I’m nauseous, and exhausted periodically throughout the days. Vomiting yesterday but still getting BFN. AF is due tomorrow I haven’t tested yet today (12 DPO) anyone have an idea if I even ovulated? My OPK said I did. But my cervical mucus wasn’t like it normally is during that time of O this month. Any help appreciated.