Very sad, thinking depression is coming on

So I learned  that my twins are most likely two girls. While I am happy that they Are healthy, I am very very sad that they are girls. I know that it's probably very selfish and wrong of me to be upset over the sex of the babies when there are so many women struggling to conceive, but I already have a few girls, and I was hoping for a boy. This will more than likely be my last pregnancy. Bash me all you want for that, but I seriously feel like this news is triggering my depression. All I can think about is this and I'm so damn sad. No one around me understands it and I'm sure a lot of you wont either but I just needed to vent