The Something Borrowed actress, who already has 7-year-old son Ryder with ex-husband Chris Robinson, explained that she is looking forward to giving birth to her first child with fiancé Matt Bellamy.
She told the Daily Record: "I'm really excited. I'm not in a rush, I don't have nerves, I'm so excited to have another baby, for our family, we are all really happy, so I can't wait.
"And I'm getting to the end, so I'm like, 'Ahhh, what is it going to be, who is it, is it going to come out screaming, is it going to come out quiet, is it going to have eyes open, is it going to be shut, is it going to have hair?'"
The 32-year-old also said that her mother Goldie Hawn has been supportive throughout her pregnancy.
She added: "I always go to my mum. Always. I talk to her about five times a day. My mum and I are constantly texting, constantly sending funny pictures. We have a very good relationship."
Watch the Something Borrowed trailer below: