I love the idea of a surprise, the old fashioned romance of waiting but I don't know if I cannot NOT know! We found out with DD but kept it a secret from family and friends. I loved knowing- there aren't many gender neutral clothes and things out there so it was fun buying tiny dresses etc. This time i am tempted to wait but i hate the idea of the sonographer knowing and not me! It's my baby in my body and I love knowing as much as I can.