Worried about gender disappointment.

So I can say I'm fairly okay with either sex- honestly I want one of each, so it shouldn't matter, right? Only, I've been thinking it's a girl for soooo long now. I had a feeling I was pregnant, just knew, and I was (no symptoms, just a feeling). When I first found out I instantly thought it was a girl. When I say the girls name we've chosen it feels- just- so right. I catch myself saying "she" all the tim. In the ultrasound she looks like a girl to me, and has a very high heart rate (13 weeks us). Everyone- EVERYONE- says it's a boy, besides our best friend, he agrees it's a girl and he guessed my sil baby (was the only one who was right then). My SO says "I trust your intuition", and agrees the ultrasound is a girl. So if it's a boy will I be devestated? Will it bother me? Has anyone experienced this? I'm worried I'll be so disappointed I'll hate the rest of my pregnancy. I know when the baby comes I will love it no matter what... but will I be rushing to try again for a girl? I'm so worried. 😰