Mila Kunis is reportedly "nervous" about giving birth to her and fiance Ashton Kutcher's first baby.

The 31-year-old star, who's in the last month of her pregnancy and only days away from delivering the child, has been busy with the preparations for welcoming their little one, and the to-be parents have finished the nursery in their 10-million-dollar Beverly Hills mansion.

Kutcher, 36, had proposed to the beauty earlier in 2014 after dating her for years, and has remained by her side throughout the pregnancy, catering to her every need.