First appointment.

Summer
Well, I had my first appointment yesterday. Doctor says so far everything looks good. No ultrasound until my next appointment. When he checked me he said I feel farther along than 6w4d so he may be changing that once I get my ultrasound. He said I'm about a week or two farther along. I'm still convinced it might be twins. Was anyone else told that they felt farther along and it ended up being twins?