Feeling selfish :-/

Kayla • Due baby #2 march 26th already have a beautiful boy who makes me smile everyday :)
I can't talk to anyone how I feel right now. I'm 13 weeks and 5days pregnant with  baby number 2. My husband and I have talked about how many kids we want and have both said only 2. We already have a boy who is our world and would like to have a daughter but I'm getting feelings that it's another boy, I'm actually anxious and not excited about finding out the sex like the way I was with our son :-/ it sounds terrible I know but knowing I might never have a daughter is making me upset and anxious about this pregnancy :-/ 
This is our scan at 11 weeks and 3 days
And this is our scan we got today at 13 weeks and 5 days. I'm just wondering if there is anyone else that has felt this way or if it's just me being selfish? Thank you