Kate Hudson and Matthew Bellamy are determined to stay together for their son.

The couple sparked speculation their engagement could be off last month after their relationship reportedly hit the rocks, but they are now keen to work through their differences for the sake of their two-year-old son Bingham.

A source told Us Magazine: ''They're talking every day to work through things. They're committed to being great parents and want to stay together for Bing.''

Meanwhile, the 'Almost Famous' star - who resides in California - is planning to fly to London later this month to spend time with Matthew while he records a new album with his band Muse.

However, a friend close to the pair, who got engaged in 2011, is feeling pessimistic about their efforts to stay together.

The pal said: ''They're afraid to end it. I don't think there is any way it will last.''

The rumours that Kate, 34, and Matthew, 35, had drifted apart surfaced in February when the blonde beauty was spotted at the BVLGARI's Decades of Glamour party without her engagement ring.

The busy couple haven't been photographed together since December last year.

Kate also has 10-year-old son Ryder from a previous relationship.