new construction visits

Hi, I had a question on new construction visits. We were told construction should be done by May when we initially bought the place in December. After which we have requested to see the place every couple of months. We have seen the place probably 3 times since we bought. This is our first purchase and we are nervous about it. I wonder if there is any restrictions on these requests to see the progress of our unit. Whats the normal visits allowed? The sellers broker has mentioned that we have seen the place too many times and just wanted to get opinion of others.