Hi Mary Dee. I've had that feeling many, many times.... It's normal I think to feel anxious about your progress. I agree with TreeofLife, it's unlikely that you will be kicked off your program without any warning. The people in my program who was kicked out was because they failed their exams or ran out of time. So, in your next meeting with your supervisor, you can try discuss your progress with him directly. With my supervisor, I find that it's better to discuss things in person rather than in email. Best of luck!