Jessica Simpson's husband has convinced her to have another baby.

The 'With You' hitmaker, who married former NFL star Eric Johnson near Santa Barbara, California in July, previously claimed she was done having children and was happy with their daughter, Maxwell, two, and son, Ace, 14-months.

But a source close to the couple says they are now ''working feverishly on having another child''.

The star posted an adorable picture of herself with a friend's baby on Instagram recently, with the caption: ''I love you Jack, but I do not want another!! (sic)''

But the insider insisted: ''Eric always wanted more kids and he's finally convinced her.

''She realised that the best moments of her life have been with Eric and the kids. She'd be thrilled to announce that another baby is on the way.''

The blonde beauty recently gushed about being a mother.

She said: ''I'm lucky to have found the best man [fiance Eric Johnson] to start my family with. We are so blessed.''

But she added to In Touch magazine: ''Eric and I are calm and supportive. We take parenthood one day at a time, but sometimes we have to reassure each other and say, 'We've got this.' I can't lie, I'm happy to be done with pregnancy right now!''