Mila Kunis baby joy: Ashton Kutcher there to welcome girl

FINALLY! After what seemed like the longest pregnancy in history, Mila Kunis and Ashton Kutcher have reportedly welcomed their first child together.

The Black Swan actress gave birth to a baby girl on Tuesday night, TMZ reports.

The US gossip website reports Kunis delivered her first bo at Cedars-Sinai Medical Clinic in Los Angeles, a hospital favoured by many celebrities. The pair are said to have arrived at the hospital by themselves, with no entourage or family, at around 6am Tuesday moing and Kunis was taken straight to the delivery room.

They were last seen together on Saturday taking their two dogs to a park in Hollywood. Prior to that, the 31-year-old mum-to-be was photographed heading to her favourite yoga class in L.A., revealing her enormous baby bump in a tight black tank top and tracksuit pants.

In the weeks prior to the birth, Kutcher, 36, was reportedly keeping a watchful eye on his pregnant fiancee. “Ashton is not letting Mila out of his sight. They are spending every moment together,” a source told E! News. “He can’t wait.”

The source added: “Mila is so excited about the baby. She’s not nervous at all. She’s been really calm and chill about it all.”

Planning ahead, Kutcher reportedly made a couple of practice runs to the hospital to see exactly how long it would take them to get there. “He’s preparing for all scenarios and not leaving anything to chance. He wants everything to go smoothly!” the source added.

He also took a break from filming sitcom Two and a Half Men to prepare for the baby’s arrival, sharing this cute pic with fans on Twitter on September 25.

Kunis recently sold her Los Angeles home for $US3.825 million, closing the deal on September 10th, according to property records obtained by real estate data and brokerage firm Redfin. The actress purchased the property back in 2008 for $2.885 million, meaning she tued a nearly $1 million profit in just six years.

TMZ reports Kutcher is currently trying to offload his own pad in Lake Hollywood Estates for $12 million. The first-time parents bought a place together in the Beverly Hills area for $10.2 million.

Further details surrounding the birth are yet to emerge but the new mum told Ellen DeGeneres back in May that they were planning a natural birth.

“We watched a couple of documentaries and we looked into the … midwife aspect of it and things, and spoke to my OB/GYN and realized that the hospital that I’m going to be laboring in does a midwife, you know, doula type of thing,” the star said. “So I’m gonna do it as all-natural as I possibly can unless there’s an emergency or something.”

Kunis has previously said that only Kutcher and her doctor will be present when she gives birth.

Mila Kunis and Ashton Kutcher reportedly want to add to their brood very soon. Source: Snapper Media

“Two people are allowed in my delivery room, my doctor and my significant other. And he is staying above the action. He’ll be head to head. Not head to vag. Unless he wants to risk his life and see.”

The That ‘70s Show co-stars started dating in 2012 and announced their engagement earlier this year. They are reportedly planning to tie the knot now that the baby has been bo.

In July, Kunis told W magazine that she will take a year off from work after her bundle of joy comes along.

“To me, this job has always been a hobby that tued into a great profession, but I don’t eat and breathe acting,” she said. “But I’m excited about being a full-time mom. Although, give me a year of not working and I’ll see how I feel.”

The break might not last that long. Kunis already has three movies lined up, including Jupiter Ascending, which also stars Channing Tatum and is due to be released in February 2015.

Kutcher was previously married to actress Demi Moore, 51, for six years. They finalised their divorce in November, 2013.