'Harry Potter' star Jessie Cave expecting fourth child

Jessie Cave revealed she was pregnant in an Instagram post. (Keith Mayhew / SOPA Images/Sipa USA)
Jessie Cave revealed she was pregnant in an Instagram post. (Keith Mayhew / SOPA Images/Sipa USA)

Harry Potter star Jessie Cave has confirmed she’s pregnant with her fourth child.

The actor and cartoonist, who played Lavender Brown in three films of the series, shared the news with her followers on Instagram.

She posted a photo taken in a bathroom mirror by her sister Bebe where she could be seen cradling her bump.

Read more: Rupert Grint joins Instagram to reveal daughter's name

Cave, 34, captioned the snap: “Can’t hide this new baby anymore.”

Congratulations were extended in the comments section from other famous faces including singer Sophie Ellis-Bextor, comedian Katherine Ryan and fellow Harry Potter actor David Thewlis.

She already shares three children, sons Donnie, seven, and Tenn, one, and daughter Margot, five, with her partner, comedian Alfie Brown.

He took a humorous approach to sharing the happy news on his own account, posting a sonogram with the caption: “Be easier in future if I just announce when she isn’t pregnant. Enjoy the baby’s foot.”

Watch: Jessie Cave's son is back home from the hospital amid coronavirus battle

Cave’s youngest son had a "scary start" in life after he contracted Covid-19 when he was just a newborn.

Read more: Harry Potter star Devon Murray welcomes baby boy

In an appearance on ITV's Lorraine earlier this year, the star detailed Tenn’s ordeal which came after they had also experienced a difficult birth.

Cave has previously spoken about the unconventional start to her relationship with Brown, as she fell pregnant with their first child in what was a one night stand.

Jessie Cave and partner Alfie Brown will welcome their fourth child next year. (Photo by David M. Benett/Dave Benett/Getty Images)
Jessie Cave and partner Alfie Brown will welcome their fourth child next year. (Photo by David M. Benett/Dave Benett/Getty Images)

The couple split shortly after their daughter’s birth but rekindled their relationship after a few years apart.

As well as her work as a cartoonist, Cave has continued acting and has appeared in programmes such as Trollied and Buffering as well as 2014 film Pride.

Brown, whose mother is impressionist Jan Ravens, is currently on tour with his stand-up comedy show Sensitive Man.

Watch: Will David Thewlis be involved in the Harry Potter reunion?