No LH surge... what's the next step/how serious is this?

I'll start by saying I'm new to all this. I did my first full round of OT (started a few days after my period ended per instructions). But no LH surge on the test. My ovulation window closes Sunday, so I was bummed to see the negative test today. Should I just keep testing for the rest of the month? If you never end up getting an LH surge is it time to call the doctor? I knew TTC was stressful but I didn't realize it could be this bad right away! Geez! Any advice appreciated:)