I'm on the third day of my cycle (I haven't had one in over 5 years) and literally all I wanna do is cry. I feel…

I'm on the third day of my cycle (I haven't had one in over 5 years) and literally all I wanna do is cry. I feel horrible, I am missing my son's easter breakfast at school due to having to work, I miss my daughters easter party yesterday due to work, I don't think I have ever felt so depressed !