Laurel Post always knew she wanted to breastfeed. But her plan to nurse her son for at least two years was derailed after 15 months when she was diagnosed with an aggressive form of breast cancer. If she’d had time to prepare, Laurel could have pumped and stored her own milk. But she needed to start chemotherapy, followed by a double mastectomy, as soon as possible. Just like many other women, Post had to adapt and change her plans because of breast cancer. Unlike Post’s baby, though, some infants still require the bulk of their nutrition from breast milk or…