Pregnant Emily Atack shows off her growing baby bump in a black one-piece swimsuit after revealing the father of her boyfriend and unborn baby is her step-cousin

Emily Atack looked positive on Saturday as she took to Instagram to show off her growing baby bump.

The Inbetweeners star, 34, looked radiant as she posed for some mirror selfies in a swimming pool changing room.

In the glowing photos, the actress can be seen cradling her baby bump as she dons a black swimsuit with flattering spaghetti straps and a square neckline.

Emily wore a glamorous makeup look and further accessorized with a pair of silver hoop earrings.

For the photos from the swim session, she let her blonde locks down and let her wet tresses flow freely down her shoulders.

The Inbetweeners star, 34, looked radiant as she posed for some mirror selfies in a swimming pool changing room

She captioned the photos with, “Me and my baby went swimming (heart emoji).”

The star is currently six months pregnant and is expecting her firstborn in April 2024.

It is believed that Emily is dating nuclear scientist Dr. Alistair Garner and the couple have reportedly set up a house together as they prepare for the baby's arrival.

It comes after Emily revealed the father of her boyfriend and unborn baby is her step-cousin.

The actress announced two weeks ago in a sweet Instagram post that she is five months pregnant with her first child.

Emily announced she was pregnant and “over the moon” to become a mother in an update shared in December.

The actress has known Alistair for almost three decades, as her mother Kate Robbins is the sister of Alistair's stepmother Jane Garner.

They were introduced after Emily's aunt started dating Alistair's father Stephen Garner in the early evening hours before they married in 1994.

It comes after Emily revealed last month she was pregnant and is 'over the moon' to become a mother in the new year

The actress is currently six months pregnant and is expecting her firstborn in April 2024 with her nuclear scientist boyfriend, Dr. Alistair Garner.

Alistair, a nuclear scientist, appears in a photo of the close-knit family in 2017, where he is surrounded by female members of Emily's family and has his arm draped around the star's sister, Martha.

A source said: 'Emily and Alistair have grown closer over the past 12 months. It was unexpected, but their family is very happy for them. They make a great couple and everyone is excited about their new addition.”

Announcing her pregnancy, Emily wrote on Instagram: 'Hello everyone, it's been a while but I'm back with some news. I'm happy to share with you that we are having a baby!!

'I have never been so happy and terrified at the same time. Please go easy on me.

'Every day is mixed with excitement, fear, joy, hysteria, topped off with lots of vomiting – a bit like when you've just stepped out of Oblivion at Alton Towers with a hangover.

'I got to know my body on such an insane level. It has made me appreciate the one I was given so much. I do my very best to make it a home for the little squid I breed.'

She continued, “We can already sense the baby lying on a mattress with peanut butter and jelly sandwiches asking for more chocolate chips.

“I'm so happy to be able to write all this to all of you. You have always stuck with me through the years, please stick around to see how I entered my motherhood era. Christ. Let's go.'

A friend told me The sun: 'Emily is delighted about the happy news and is happy to tell family and close friends about her little one on the way. It's the perfect end to her year and she feels on cloud nine.

Although they have not been made public, Emily is believed to be dating nuclear scientist Dr. Alistair Garner and the couple have reportedly set up their home together as they prepare for the baby's arrival (pictured in September)

They added: 'Emily is more than ready to become a mother and it's something she's dreamed of all her life. Her relationship with Alistair has gone from strength to strength and they have started living together.

'Family is everything to her – she comes from a large family and is very close to all her brothers and sisters – so she can't wait to start one of her own. They have all rallied around her and are happy for the joyful occasion.”

Emily was spotted in London in September cozying up to handsome nuclear scientist Dr. Alistair.

The star shone as she walked the streets of the British capital with Alistair, who describes himself on LinkedIn as a materials scientist and electron microscopist specializing in nuclear and space applications.

Emily has a host of cousins ​​thanks to the extended families of both her parents, actress Kate and singer father Keith Atack, who split in 2007.

Alistair comes from her mother's side and is the stepson of Kate's sister Jane, who married his father Stephen Garner, who died last summer leaving Emily devastated.

Despite the majority of her cousins ​​living in northern England, including Alistair, Emily says that herself, plus sister Martha and brother George, still managed to spend a lot of time with them growing up.