Can any one help me understand

marie

Can anyone tell me if I BD on the right days and what day I really ovulated? Get really confused with the test strips. I think I might have missed my chance. *1st and 2nd photos from PREMOM app , 3rd and 4th from <a href="https://play.google.com/store/apps/details?id=com.glow.android">GLOW app</a>