He do u add ur gender if u haven't when u set up?

Bottom left of your profile info is an edit profile button.

Click on "Edit Profile" then at the top it will say 1. Personal Information it's the 7th line down you can't miss it.
It says Gender, you can click on it and choose Male or Female.
If you already figured it out, never mind. Maybe this will help someone else :-) take care!