Gender disappointment

Any one else disappointed after finding out the gender? I was really hoping for a girl and just found out I'm having a boy. My husband really wanted a girl too but is so happy that we're having a boy. I know I'm going to love him and it's not like I have any regrets or anything but I still can't help feeling a little sad. I also feel a little guilty for being disappointed. I'm trying so hard to be happy and look on the bright side of having a boy but I'm having a hard time adjusting my mind set.