Kate Bosworth wants to clear her schedule to start a family.

The 31-year-old actress, who married director Michael Polish last year, has reportedly been telling her agents that she doesn't want to take on any more roles in the near future as she wants to focus on getting pregnant.

A source told America's OK! magazine: ''Kate's dying to get pregnant, but her schedule hasn't allowed it.''

The insider said the blonde beauty has also started taking prenatal vitamins and is carbo-loading in the hopes it will boost her fertility.

Earlier this year, Kate admitted she thinks raising a child will be ''tough'' but insisted she is ready for the challenge.

She said: ''I know that it's going to be tough, but Michael and I will find humour in it.

''We're already convinced that our kids will do things that are hilarious.''

The 'Big Sur' actress' ''maternal instincts'' kicked in when she first started spending time with 16-year-old Jasper, her spouse's daughter from a previous relationship.

She added: ''After ordering pizza for the third time when she first started coming over, I knew I had to learn how to cook because I wanted to nurture her. These maternal instincts kicked in.''