I also had TNBC in 2025. I had a mastectomy followed by 4 rounds of chemo. My tumor was 1.2 cm , no lymph node involvement and clear margins. I see my breast surgeon every six months and my oncologist NP every six months. There are no scans or blood tests. So that is worrisome. I am just supposed to notice any pain or unusual problems? Research is ongoing for a vaccine. I did join the Breast Cancer Support Network for weekly zoom meetings. It is very helpful. The good news is we caught and treated it early.