dollar tree ovulation kit

Kel
It has been frustrating for last 4 days,I am not sure if I miss my ovulation or still too early? So difficult to read this ovulation kit. 
Also, my cycle has been messed up. 
Jan - first time I got period when my daughter was 11 months old
Feb - 28 days cycle
March- 28 days cycle
April - 26 days cycle
May - 27 days cycle
June - 24 days cycle (just started trying to get pregnant).