Newly diagnosed with invasive pleomorphic lobular cancer

Hi. I had my single mastectomy on July 11th. My pathology report came back positive for invasive pleomorphic lobular cancer and the tumor was grade 3. The surgeon got clear margins. 2 lymph nodes were removed and 1 was positive. I meet with the surgeon next week and he is going to make a referral to an oncologist. Has anyone else been diagnosed with this? I know it’s very rare and aggressive. I’m wondering if I will need chemo even though the cancer was removed.