ovulation test negative

Shannen • Engaged 💍 have a fur baby named pancake the Pomeranian 🐶 pregnant with number 1 finally. Expecting feb 2019
Hi,
We have been trying to fall pregnant for three months. Glow says I ovulate today my cm is watery and yesterday had a very high sex drive as well as ovulation pain on one side.
I did a clear blue digital ovulation test first thing this morning 7:30am it came up as negative. Can this be wrong? When are you suppose to do an ovulation test? Should I try again today ?
Thank you.