She’s placed her soccer-playing husband on a “fertility” alkaline-rich diet, designed to strengthen his sperm, in a desperate bid for a fourth baby, but Victoria Beckham is still petrified that having another child will ruin her body and cause her to age prematurely.

‘Victoria’s got major issues about having another baby. She’s terrified of putting on any weight, but she has to if she wants to fall pregnant.’

Posh Spice has been putting off having another child because her last pregnancy, with two-year-old son Cruz, was a difficult one.

‘It was very painful and it took a lot out of Victoria physically,’ says our source. ‘She’s paranoid that the sagging skin around her tummy will get worse than it already is after three Caesarean sections.’

‘David says they want five kids, but we all think he’ll settle for four if they can virtually guarantee this one’s a girl. Victoria definitely doesn’t want to go through a fifth pregnancy, no matter what.’