My workplace, each grouped together time off, is considered an 'occurance', 7+ occurrences from one review to the other(my calendar goes May to May), is considered as a reason for a write up. I also, work under a contract. Better to check your employee handbook, to ensure that you aren't going to jeopardize your job. I, personally, save my mental health days, due to kids, winding up sick. I have called out, a couple times, over the past three years, because I just couldn't bring myself to work.