Cramping a day before AF.. I guess im out this month

So here I sit at the office. Bloated and cramping a day before AF should come. We have been trying for 7 Months and I was hoping that I will get the good news for my birthday which is in Dec. Im so tired of trying and I really dont want to focus on it, but I cant escape the thought because every single one of my friends are pregnant as well as the cousins on both sides of the family. Im heart broken.