Another negative

Nikki

I'm on day 28 of my cycle and I've taken a test but it was another negative 😫 I've been ttc for just a year now and I feel like it's never going to happen. The last few days I've been super tired, I've suffered with terrible headaches and dizziness. Had the shakes this morning and felt sick too but I know my gut feeling it's my af that's about to arrive. What am I doing wrong?