Patients in this study will have a chest radiograph with appropriate fetal shielding. Patients will have an ultrasound of the abdomen to evaluate the presence or absence of metastatic disease in the liver. If suspicious abnormalities are found, a MRI of the abdomen will be done. Scanning MRI of the thoracic spine will be performed to screen for bone metastases. Patients will have standard blood tests and a mammogram or ultrasound of the affected breast and lymph node bearing areas. Patients will have a tissue biopsy to confirm the status of the cancer. An ultrasound will also be performed to learn the age and development of the fetus.