I have a question?

So me and my husband went and had a 3D gender reveal ultrasound yesterday. Well according to it, we are having a boy.  Is it wrong that because everyone I know was telling they think it's a girl, and getting my hopes up. Now knowing it's a boy, I'm not excited feeling, maybe even a little let down. Is that wrong? I just feel like with everyone telling me "oh it's a girl I just have a feeling!" and getting that in my head, has made me disappointed in some way! Is that  so wrong or is it common? Even though if it truly is a boy I will love him no matter what! And he will be a mommas boy for sure!