It’s totally fine for your body to use a breast pump and don’t worry if you’ll ever run out of milk or getting tired. Just make sure that you’re still eating well and drinking enough water. As long as you’re feeling fine, you can keep pumping breast milk. Just don’t make too much of them and causing some to go bad after extended amounts of time. Also, it’s not recommended to share your breast pump with other moms since it can potentially cause bacteria and viruses to get easily transported between the babies. And even when you’re the only one to use it, make sure to clean up your breast pump frequently and after each use. This will guarantee that they’re clean and sterilized for your babies.