Mila Kunis and Ashton Kutcher can't wait for their baby girl to arrive!

Los Angeles - Mila Kunis and Ashton Kutcher are "so excited" for the birth of their baby daughter next month.

The couple, who got engaged at the end of last year, can't wait to meet their new bundle of joy in a few weeks time and are now putting the finishing touches on the tot's jungle-themed nursery ready for her arrival.

A source told PEOPLE: "Ashton and Mila are getting so excited. Ashton is a kid at heart. He can't wait to do tons of stuff with the baby."

"Mila is feeling good and things are going smoothly. She does feel pretty big lately and can't do much because it's harder for her to move around."

The Two and a Half Men star, 36, has been looking after the 30-year-old beauty throughout her whole pregnancy and has become even more protective as she has reached the final trimester.

The source added: "Ashton does errands alone so Mila can stay home. He seems to take great care of her!"

Meanwhile, the former That 70s Show star recently admitted she is looking forward to marrying her former co-star, and is believed to be preparing to walk down the aisle next July.

She previously said: "I never wanted to get married. From the age of 12, I prepared my parents for no marriage. Then things changed - I found the love of my life. Now my theory on weddings is: Don't invite anyone. Do it privately and secretly. My parents are okay with that. They're just excited that I said yes."