When to order ivf meds

My cycle ranges from 28-32 days currently on day 28, I should have my monthly on 10/4 or 10/7, I wanted to know if I should order my medications now. Lady at cny told me some of the medication expire in 9 days and it isn’t best advised to order them now but if I get my period on the 7th that’s a Friday and by the time I get my meds it’ll be Monday & that’s a holiday! Due to it being the weekend I’ll be out a whole month due to the timing of the week. So I’m not sure when the appropriate time would be? Anyone have any ideas? Would I be okay if I order them on the 5th maybe?