While adding laundry detergent and new tires to their shopping carts, women and their partners can also click their way to preventing unwanted offspring. In Reddit’s TwoXChromosomes community, Reddit user Jynxbunni shared a handy PSA, writing “TIL You can buy Plan B on Amazon.”

Here’s one option, offered by seller nuMed. It’s $38 for one tablet at the moment, a bit less than the average retail cost of $40 to $50 at local pharmacies. Unfortunately, same-day delivery doesn’t apply, so this would be more of a stock-up-and-prepare option than for times when you need the pill asap after an accident (a broken condom or missed days of taking birth control pills). Plan B One-Step is most effective when taken within 72 hours of having unprotected sex.

While Plan B—the most common brand of the so-called “morning after pill”—isn’t particularly new to Amazon’s mega-marketplace (various sellers started peddling emergency contraception shortly after it was approved to be sold over-the-counter in 2013), Jynxbunni’s discovery surprised—and delighted—many redditors. Previously in the community, women shared horror stories about being shamed by their pharmacists for buying birth control. Redditors have also discussed purchasing Plan B for other women who either can’t afford it, can’t have their parents find out and/or don’t have access to a Planned Parenthood. The Amazon option adds a layer of much-welcomed discreetness for some buyers.

A note of caution before ordering. Plan B One-Step doesn’t verify products sold on Amazon, so customers have no way of knowing they’re receiving a vetted item. If the discounted price seems too good to true—it’s been offered at as low as $16.90 on the site—it very well may be.

For those who do choose to buy online, the reviews are mostly positive. Writes one Amazon reviewer who gave the product five stars: “Works great! So far no one is pregnant.”

Of course, Plan B is just that. A Plan B. Don’t forget to stock up on Plan A: