Renee Zellweger is thinking about adopting a child.

The 44-year-old actress, who was briefly married to country singer Kenny Chesney in 2005, is reportedly desperate to start a family with her rocker boyfriend, Doyle Bramhall II, who is a guitarist for Eric Clapton.

A source close to the 'Bridget Jones's Diary' star told gossip website ''She's considering adopting.

''She knows that she probably missed the boat on carrying and giving birth to a child. She gets down about not having a family yet.

''She knows 44 isn't too old to be a mom. It will just have to happen a little differently than she always imagined it would.

''She's been directing and working on her own projects, which has given her more time and flexibility to build her relationship with the right guy. Hopefully, she'll get the family she's always dreamed of having.''

The insider added: ''Renee's a true romantic, and she didn't want to be a single mom. She always wanted to have a partner who is dying to share the adventure of parenthood with her. She really wanted the situation to be perfect -- and it seems like it's getting there.''

The blonde beauty began dating Doyle approximately 18 months ago but they have been friends since they were students at the University of Texas Austin in the 1990s.

The source said: ''Renee was ecstatic about finding love again with an old friend. She knew Doyle's a good, solid guy, and she easily imagined starting a family with him.''