According to Nikkansports, Sato's husband used to work for Ichikawa Ebizo who had also dated her between October 2006 and February 2007. At that time when the dating report was published last year, Ichikawa wrote on his blog about his ex-staff dating his ex-girlfriend with a photo of Sato's husband during a meeting they had.
In Sato's blog entry, she did not give any details of her husband but mentioned that she had been engaged to him for one and a half years. As for the timing of her announcement, it was said to be due to her inability to keep her excitement about being pregnant to herself and she wanted to share the happy news with everyone. As for her work, Sato said that her health will come first and her schedule will depend on her condition.