Trying not to be gender disappointed ...

So I went to my appointment today going to know my gender , I'm 17 weeks so I asked her to tell me. She checked but for two reason she couldn't tell. One because the cord was in the way and two the baby was upside down with its butt up. But she told me she "thinks" it's a girl. 
I told myself I wouldn't feel sad if she says that, but deep inside I still felt a bit broken. 
I know I'll love the baby no matter what gender it is, but yeah. I don't even know why I'm sharing this I guess to get it off my chest a bit because I don't really have anyone to talk to .   Btw I have a 11 month old girl .