Gender disappointment

Has anyone experienced gender disappointment? I don’t know the gender of my little just yet but I do know I want a girl. From the moment I found out I was pregnant I had such a serious want for a little girl. I always said I wanted boys. ALWAYS. But now the thought of having a little boy makes me want to cry. Does that make me insane? I KNOW I will love my little no matter what but I just feel like I will be so disappointed when I’m told I’m having a boy. I’m probably all worked up for nothing but I just don’t know how to get myself to a point where I’m at peace with no matter what I have. Has anyone experienced gender disappointment? Has anyone else felt like I do? Or am I worked up for nothing? Plz help a momma out.