Negative test but late period

I decided to finally take a pregnancy test. After weeks of feeling so sick. Maybe it’s the flu or cold. My boyfriend finally told me to take a pregnancy test. Unfortunately, it was a negative. I’m now about to work on my third day missed period. I seem to be having a lot of CM for this time of month. I’m normally never late, I’m either cramping days before my period or start on my normal schedule. I don’t understand why I’ve had light cramping but no period! I’ve noticed a change in my pee. Which is bright yellow like Gatorade. High sense of smell to it. I know it means I’m dehydrated. But girl... I drink a lot of water. Should I wait a couple more days and take another test? Or what? Not to sure where to go from here. I’m now worried why my period hasn’t started if I’m not pregnant 🤦🏻‍♀️