It would be a very cute and well worth it if it was a sign or even just a dream of wat it could be like. I know my step mom and sister stuck to their themes of the animals they dreamt of so that could be helpful to. Either way like you said it puts a smile on your face :)
I had a really cute dream the other night and I was holding a baby girl. When I was pregnant with my son I had dreams I was having a boy so maybe once again it's a sign. Who knows but it still put a smile on my face :)
But of course i dont know my babys gender yet