In France, between 350 and 700 women are diagnosed with breast cancer each year while they are pregnant. This occurs in about one in every 1,000 pregnancies. Twenty years ago, the standard medical response would have been to end the pregnancy, as treating cancer during pregnancy was considered too risky for the fetus. Today, however, medical advancements allow for treatments that can manage cancer while preserving the pregnancy. Despite these options, a diagnosis of breast cancer during pregnancy can deeply disrupt a woman’s expectations and emotional journey of becoming a mother. Pauline and Mélissa are two women whose lives were turned upside down when they learned they had breast cancer while pregnant. Their stories, though different in many ways, reflect the shared challenges faced by women in similar situations. Pauline, a teacher, was in her second trimester when she received her diagnosis. She immediately began researching treatment options and worked closely with her medical team to find a plan that would allow her to continue the pregnancy. Mélissa, a nurse, faced a similar situation but chose a different path, opting for a more aggressive treatment regimen that required her to make difficult decisions about her health and the well-being of her unborn child. Both women experienced a profound sense of loss and uncertainty. The idea of motherhood, once a source of joy and anticipation, became intertwined with fear and anxiety. They had to navigate not only their own health but also the emotional and psychological impact of their diagnosis on their families. For many, the experience is described as a "double battle"—fighting cancer while also protecting the life of their unborn child. Medical professionals and support groups have worked to improve the care and resources available to pregnant women with breast cancer. Research has shown that with proper treatment, many women can successfully carry their pregnancies to term and undergo cancer treatment after giving birth. Despite these advancements, the emotional toll remains significant, and the journey is often described as deeply personal and unique for each woman.