Is this normal?

I’m 35 weeks and my doctor wants me to have a bpp and a nst once a week until delivery. At 34 weeks we found out I have GD and I’m Rh negative. At my first bpp we seen the baby was measuring 37w4d and weighing 7lbs. They didn’t seem too concerned about the baby’s health but more me being so small and the baby being so large. Is this normal for them to check us this often and there be nothing wrong?