I kept my facebook status as?

"That day of the month again."
Now, my bf got super mad at me that I let the world know when my periods are, cuz he thinks any guy reading this status will think that only. I on the other hand, had no intention like that. I just wrote that in reference to that one particular day everybody has when everything sucks, and today that was for me. I was so tired and sick. Now he wants to get a vote so to be the winner of the argument, and he is calling me a liar and a slut. So, is it true? Guys? What comes to your head?