>>> our thanks to rachel scott for that report. alexandra and blake plan to try another round of ivf some time this year. our best wishes are with them. and that's "nightline" for tonight. thanks for staying are living in the moment and taking ibrance. ibrance with an aromatase inhibitor is for adults with hr positive, her2 negative metastatic breast cancer as the first hormonal based therapy. ibrance plus letrozole significantly delayed disease progression versus letrozole. ibrance may cause low white blood cell counts that may lead to serious infections. ibrance may cause severe inflammation of the lungs. both of these can lead to death. tell your doctor if you have new or worsening chest pain, cough, or trouble breathing. before taking ibrance, tell your doctor if you have fever, chills, or other signs of infection, liver or kidney problems, are or plan to become pregnant, or are breastfeeding. for more information about side effects talk to your doctor. thanks, mom. be in your moment. ask your doctor about ibrance. a pfizer product. another one in