Just thinking of my own previous experiences and those of friends. It always seems to be 'how to ask the guy where it's going without seeming needy' and it often seems to be the man who calls the shots in that regard.
People who are looking for a committed, boyfriend/girlfriend relationship, how long would you wait ? I remember last year a guy telling me he was 'not sure' about being official after 6 months of knowing me.
Not sure why it should take several months to know, you're entering into a relationship, not marriage ?