Katherine Schwarzenegger says Chris Pratt has been very ''helpful'' throughout her pregnancy and praised him for being "a very wonderful husband".

The 30-year-old author, who is expecting her first child with the 40-year-old actor this summer, said she feels "really lucky" to have so many people around her.

Speaking to Entertainment Tonight, she said: ''I'm really lucky to be living in very close proximity to my family, which has been very helpful.

"And then, obviously, I have a very wonderful husband who's very, it's been amazing having him home and also very understanding about my need to sanitise everything, having everyone wear masks all the time.

"That's been helpful. Also, having people like you who I text constantly about everything baby because I'm learning as I go and it's been an interesting time to be pregnant," she said.

Schwarzenegger's mother Maria Shriver recently told son-in-law that he'll have a ''beautiful'' baby with her daughter.