Drew Barrymore is "exhausted" in the final stages of her pregnancy.

The actress is expecting her first child with new husband Will Kopelman and is said to be struggling with the physical strain. According to sources, the Hollywood star is finding the Los Angeles heat unbearable and finds it hard to get comfortable.

"Drew's at the bloated and exhausted stage. She's not sleeping well and she feels like she's overheating in the LA summer - she needs ice cream and cold drinks," an insider told British magazine Closer.

Drew, who has kept details about the pregnancy private, was reportedly spotted shopping for girl clothes with her husband of two months.

Will is said to be supporting his new bride in every way possible and reportedly threw a baby shower for Drew with the help of best pal Cameron Diaz.

Meanwhile, the heavily pregnant star is said to be fighting her restlessness with a healthy wellness regime.

"She's trying to stay calm by doing yoga, but she's feeling sluggish," the source added.