Office star Jenna Fischer gives birth

Jenna Fischer has given birth. Photo / Supplied

Jenna Fischer has given birth to a son.

The Office actress and husband Lee Kirk became parents to baby Weston Lee on September 24, her representative has confirmed.

The spokesperson added: "Mum and baby are doing great."

Her pregnancy was written into storylines in the latest season of The Office, currently on screens in America.

Jenna - who married Lee in July 2010 - previously said her pregnancy was going well, through she had experienced some cravings.

She said: "In the beginning, it was a lot of macaroni and cheese and Lucky Charms. Now it's a lot of strawberries. I've been really lucky. I've had a really easy pregnancy."

The 37-year-old star revealed she was expecting a boy in July.

When asked by talk show host Jay Leno whether her parents were pleased with the pregnancy, Jenna said: "This is their second grandchild, but first grandson.

"This is the exclusive, Jay. When I went to my movie premiere the other day a reporter asked me if I knew what I was having, and I said I do, but I'm not sharing that yet because I'm [going to] have Jay be the first to know."

- BANG! Showbiz