United Kingdom, Aug. 15 -- Reese Witherspoon was "deliriously tired" and "cried" when she was "working 14 to 17 hour" days as a single mom .

The Legally Blonde star has opened up about raising her two children - Ava, now 25, and Deacon, 21 - following her split from their father Ryan Phillippe in 2006 while trying to maintain her career in Hollywood and she has confessed it left her feeling totally wiped out.

In a post on Instagram, Reese, 49, shared a series of pictures of her with her children when they were younger and admitted it was "really hard sometimes".

She wrote: "Someone asked me what raising three kids and building a career in Hollywood looked like ...

"It looked like spending a lot of time in trailers together ... It look...