OPK HELP 😞🙏🌷

Hey guys, I found out at 10 weeks that my baby's heart stopped beating 😞 was told a mmc, then developed an infection and had a septic misscarriage I was in hospital for a while and ended up needing a dnc it was horrible, anyways I'm ovulating now for the first time after I lost the baby I've been desperate to try again, just wanted a bit of help understanding them 😊 I took them over the last three days, does that mean the middle test (from yesterday) was my ovulation day? 

💝💖💗