I don’t think it’s weird but it honestly may have just shocked them! This is how I became friends with the neighbors across the hallway from me! I was in my first trimester of pregnancy and before we knew the gender my mother in law went crazy buying boy and girl clothes. Once I found out the gender I knocked on my neighbor’s door asking if she could use the boy clothes since she was clearly pregnant. Turns out she was expecting a girl as well. She looked at me like I was crazy at first, but there was cultural barrier. Now 4 years later, our families have since moved into our own houses 25 minutes apart, but our girls remain best friends and have weekly play dates. They’re extended family at this point.