David and Victoria Beckham will try having sex standing up in an attempt to guarantee they have a baby girl and not a fourth boy.
The Real Madrid star is said to be keen on having a baby girl and willing to try anything in order to get what he wants.
"He's found out through talking to people that you have more chance of conceiving a girl if you do things like have sex standing up on certain days of the month," a source told Grazia magazine.