Maybe girl💗..

I'm 18 wks 3days and today we had our monthly appt and my dr was nice enough to sneak a peek to check gender..he said he 'thinks' it's a girl. My heart sank. I was totally expecting him to say boy. Either way I would be happy but since it's my first baby I was hoping for a boy first to be the big brother..now I'm scared to have a girl first haha. I'm kinda freaking out to have a girl first, is it just me? We get another US in 2 weeks to verify boy/girl.