Pregnant patients should follow the same treatment protocols as non-pregnant patients, but there are certain unique factors to consider when it comes to diagnosis, staging, cancer treatment, and obstetric care. The fundamental idea is that, if possible, women should keep their pregnancies and undergo cutting-edge cancer treatment as soon as possible. Genetic testing also needs to be considered. A multidisciplinary treatment plan should be determined, while carefully considering features of the tumor, the patient and pregnancy related factors, and patient's preferences. All trimesters are safe to undergo breast cancer surgery. Beginning at 12 weeks of gestation, chemotherapy can be given to a patient without risk, but radiotherapy, endocrine and HER2 targeted therapy are contraindicated throughout the whole pregnancy. Importantly, fetal growth should be monitored, and long-term follow up of the children is encouraged in dedicated centres.

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