First round of clomid

We’ve been trying for 4 months and last week I went to doctor to see why I am not getting pregnant. Done blood test and My progesterone is 3. I was doing ovulation test at home and I got positive result every month but doctor prescribed me clomid 50 , cd 3-8 and he said don’t track your ovulation. If you don’t get pregnant in 3 months visit me again. I just wonder do we need get blood test done every month? And anyone’s doctor said something like this ? I feel like I should see another doctor.