clinical guard ovulation strips

Kay

Is anyone else around age 26 using these strips and having a hard time pinpointing their surge day? I confused the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> because I thought my surge was on March 23rd but now I'm sure this is my ovulation time frame because I'm having other textbook symptoms. However, idk how to pinpoint the exact day?! Also, my cycle is (I think 36 days long)!