As a bit of additional suggestion....
Over the time I've been on hrt, I've found that if one gets their Rx refilled a week or so before the bottle is empty, one can stash that last week's worth of meds in any spare bottle. (I'm sure we all have many such bottles...

)
Over time, one can stash quite a backup amount, and even rotate the old stock with new, to prevent expiration date issues.