Too soon to test?

I’m 8 days away from my period

6 days DPO

Temps have been high but haven’t increasingly gotten any higher that 99.9(kinda glad as that’s temp level)

Sore breasts, appetite is average. Very tired, I stay in bed unless absolutely necessary to get out. Weight gain has gone up. On occasions I’m light headed.

Is it too soon to test? Scared of a negative as we have been TTC for 3 years now. 🙁