Don't say it in those words if you're afraid of scaring him. I mean you have only been together for 2 months. (This of course is coming from the assumption that you are worried about freaking him out) You could just say "is it weird that sometimes I think I'm gonna lose you?".
This is the difference between guys and girls, if a girl tells a girl that after 2 months its an instant turn off and she's no where to be found, if the girl tells a guy that after 2 months he's gonna hug her, get emotional and appreciate it.