My Transplanted Hair Started Growing Immediately

I had a hair transplant surgery 3 months ago. Immediately after my hair transplant,and im talking about the 1.5 to 2nd month, i realized my hair to grow up as now im on the 3rd month and my right hairline is covered with hair, something that does not happen on the right. My doctor also had confirmed this with me in front.My question is, is it guaranteed that my hair where the transplanted area is will continue to grow and generate new hair until the 6-8 month as expected?is there any chance to stop growing from now on?

Thanks

Some hair will grow immediately in about 5% of patients and 5% of the hairs. You might still see more over time, but not more than 100% of what was transplanted. Nobody ever gets two for one.