has anyone else not been physically attracted to their SO?

Theresa
So I've been dating this guy almost a month, and he's easily the sweetest guy I've ever met and he treats me really well, but I don't know how physically attracted I am to him. All my friends and everyone like him and say we're cute together, does it make me shallow to think that i may not be as physically attracted to him as I should be?? 
Can physical attraction stem from emotional attraction? I don't wanna lead him on but I don't wanna lose him either. 😫