I’m disappointed but I really shouldn’t be

I have spent this entire pregnancy thinking that I was having a boy - even though everyone around me said I’m having a girl. My 20 week scan the tech and the dr seemed 50/50 split and then said “we are pretty sure it’s a girl”. I held it together but lost it when I got home. My hubby and my son are excited but I am miserable - seeing them happy helps but I can’t shake this disappointment. I want to say it’s a lot of hormones, stress, and having being sick a lot… oh and for some reason people enjoy telling me negative things about their daughters. I should be happy to have one of each but I feel disconnected and just want this pregnancy over with so I can move on. I’m sure I will love this girl with a bit of time and patience but that time isn’t this moment…