Gender guessing is getting me down

I never wanted to know the gender of my baby, I always wanted that surprise moment at the birth. However, I have a family member that is so adamant I am having a boy that I am now convinced and I feel sad - like that surprise has been taken away from me and I'll only feel it if it turns out that I have a girl. In conversations, I would always try to just end the conversation by saying "we'll see" but it's hard to talk to this person without it coming up some way and now I've reached this point. Can I feel excited and surprised again?