When my niece told me she was having twin boys I was so excited for her. A little concerned too because if they turn out like her husband she was going to have her hands full. She would anyway but it was going to be wild. So everyone bought the ATV stud, tractors, all boy stuff. I kept telling her that some times sonograms were wrong. She's an Emergency Room RN, had quite a few sonograms because they had to watch them carefully for various reasons, so she would tell me I was just wishful thinking and get ready for a couple little dudes. When my BIL called to tell me that Libby came out first - I just laughed. Then panicked because everything was for little boys. That was over 5 years ago and what is funny, she is all girl too. Her brother is a Lego Fanatic and he loves Star Wars everything. So you may want to make something simple now and save the detailed things after you meet them and their personalities talk to you.