GoodRX and Prescription

Last time I was at PP for HRT doctor suggested I could use GoodRx which is a pharmacy coupon site to pick up E and Spiro prescription at local pharmacy. Do I need a prescription from the doctor to purchase/pick stuff up or just fill out the site and have a coupon? I ended up getting hormones at PP, but (even she said this) I may be cutting it close with amount because it can last me around 60 days with other leftover pills I have and it’s a 2 month in between period.