Last month, Zhang Ziyi's boyfriend, Wang Feng proposed to her successfully and she continued with her filming schedule.
According to the source from Mainland China, Ziyi is suspected to be pregnant.
Earlier, Guo Jingming and Zhang attended the opening ceremony of a new movie in Beijing.
Zhang was wearing a black top and jacket and had a 'bigger tummy'.
As such, some netizens suspected she was pregnant.
Referring to Zhang's record on Weibo, she was trying the role image for new movie last month and wore layers of jackets as well as carried a cup of coffee to make herself warm.
Zhang has yet to respond to the rumour.