Kate Winslet is a ''hands-on mother''.

The 'Titanic' actress - who has 13-year-old daughter Mia with first husband Jim Threapleton and nine-year-old son Joe with second husband Sam Mendes - is expecting her third child with new husband Ned Rocknroll and although she's a busy movie star, she always puts her role as a parent first.

She explained: ''My children are my whole life. Any mother knows that - the second your child is born, they become the first thing you think about when you wake up in the morning and the last thing you think about at night.

''I'm a very hands-on mother ... Even as I was walking from the elevator to this room [at Toronto International Film Festival], I was texting the doctor back in the UK to get an appointment for my son because he has an earache. I'm the number one person to do all that stuff for them. Isn't that what a mother is supposed to do?''

The 37-year-old star admits she isn't sure how her ''career will be affected'' by having three children, but she looks forward to juggling her illustrious career with being a mother.

She told HELLO! magazine: ''I do love acting and I feel as privileged to get do it now as I did when I was 17 years old. Because of the kids, I tend not to work too much. I try to limit myself to one project a year. But that means I really look forward to the films I make and whenever the time for the next job rolls around, it feels like Christmas to me!''