asepossible firing due to hospitalization and surgery

I was hospitalized for 4day and had to receive a blood transfusion. The manager told me if I was absent more than 5 day it would have to be filed as a leave of absence. When I was released from the hospital I was place on bed rest for a week. When I went back to work I asked if I had an occurance to sign for being gone. I was told no. My work is based on compliance. I missed June's numbers by 440. But I didn't get a write up for that or missing days. Then I find out I have to have surgery and will be on bed rest for 1 month. I filled for leave of absence.
Today I requested a print out of my occurances. It shows 4. I knew of the 3 but they also gave me one for the time I was in the hospital. I talked to HR and was told even when you have Leave of Absence you get an occurrence. But in March I had to use 1week leave of absence and didn't receive an occurrence. After 6 occurrences you get fired. Is it lawful for them to give me an occurrence when I have been approved for leave of absence? I am not eligable for fmla until September and the surgery cannot wait that long.