Ivf meds confusion

Brooke

The doctor told me to get my meds ASAP, but the pharmacy told me to wait a few days before my period starts because they have a short shelf life? Does this sound correct. I was suppose to start last month but my preconception testing wasn’t all in yet. I woulda already had the meds if I didn’t cancel. Normally I ovulate by now but no positive opk yet, so I’m thinking af will be thrown off. Should I just get the meds or wait.🤷🏼‍♀️