Fertilty clinic "lending" meds???

Hi! I'm on my first cycle of IVF so I am not sure what the expectations should be. I had a strange thing happen at the doctor's office. I pointed out that it is Friday and if I am to continue my meds at the same dosage/rate that I would run out by Saturday night. They gave me what are labeled as samples and noted my file as I was "borrowing" until my mail order comes in. Is this standard practice? FYI I was short due to the Dr. NOT maxing out my script. (INS pays per incident not by quantity)