Unless you cancel, we will ship your next supply of Probiotics 30 days from the date of your first order. Thereafter, you will continue to receive a supply of product each month for as long as you stay a member of our auto-ship program. The card you provide when you order the trial, take out trial please, the product will be automatically charged the discounted price of $39.99 (Probulin) OR $17.99 (ProbuMints) for one bottle plus shipping and handling when each new product ships. To cancel future shipments in the auto-ship program, you must call 1-855-776-2854. You may cancel anytime without penalty.