Guiliana Rancic has attributed her breast cancer diagnosis with her efforts to get pregnant.
But could her fertility treaments have contributed to her diagnosis?
Specialists in breast cancer and fertility say no. Studies so far have shown no increased risk in women undergoing fertility treatments and the occurrence of breast cancer.
"Right now there is no convincing evidence that IVF causes breast cancers," Dr. Jennifer Litton at MD Anderson Cancer Center in Houston told ABCNews.com.