Help pls :(

Hi can u guys help me :( my cycle is 20days only im taking femara last month i ovulate around 12-13 days of my cycle.. But did not get pregnant.. I stop taking femara this month i got 3days high fertility i used clearblue digital opk.. The glow says im ovulating on july 28 but i didnt get the peak opk just hight fertility window.. I dont know if im realy ovulating or what.. But last month i only test 1 opk and its positive but now i take 3 opk and its still hight fertility can i still get my +opk?? 😞😞