When would I ovulate?

Ce

I was on birth control for 4 yrs straight until last month ( Jan 2). I was being silly and didn’t do enough research and stopped taking my pills a week early before my expected period. My husband and I have been trying to conceive since then and multiple ovulation tests show now surge in Lh and and plentiful negative pregnancy tests. I know it’s still early to lose hope but I’m getting a little frustrated not knowing when I would ovulate even with <a href="https://play.google.com/store/apps/details?id=com.glow.android">ovulation tracker</a> apps and watching my CM fluid and looking for ovulation signs. *sigh* I just want my baby :(