Why Don't I see Results of CO2 Laser Skin Resurfacing After 2 Months?

I recently paid $3100 for a Full Ablative CO2 Laser Skin Resurfacing from a PS. I was put on sedation with an anaethesiologist, and the procedure was done in 30 minutes. I had hardly any redness, or was swollen. I kept aquaphor on my face, and 3 1/2 days later I was completely normal. The problem is, I look EXACTLY the same as I did before the procedure. The PS says I won't see results for 2 months, because the collagen has to build up. Is this normal?