Clear blue easy ovulation test

Crystal

So I’m new to the test but not new to ttc.. I brought it to increase my chances. I have the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> & not the ovulation kit. I was supposed to be in my fertile window I took the test and I get a no ovulation result all three days of taking the test. I’m 34. Could there be something wrong?