Estrogen Positive Breast Cancer; 2 rounds of IVF: I was diagnosed with my daughter was 9 months old (May 2009). I was nursing her and couldn’t get milk out. I thought it was a clogged milk duct. I had a biopsy and was diagnosed with ER+ Invasive Ductal Carcinoma. Jan 2011, I was diagnosed with Stage 4 breast cancer that spread to my bones (on my vertebrae). Jan 2013, diagnosed again with numerous mets all over. It is chemotherapy once again. Breast cancer does not run in my family. I know I got this aggressive breast cancer from IVF. The injections of estrogen added fuel to the fire (small cancer cells) – the fire may never have become actual cancer.