The pair, who got engaged in 2009, will reportedly wed in Leicestershire on June 30. The couple have one daughter together.
According to The Mirror, Clancy has banned Crouch from having a party because of allegations that he slept with prostitute Monica Mint when in Spain on a friend's stag do last year.
A supposed friend of Clancy's said: "It has taken a lot for Abbey to forgive Peter. She has just about managed to move on.
"The last time that Peter went on a stag do was the incident in Spain, and obviously that is fresh in Abbey's mind.
"The thought of him heading out for another stag party with a big group of friends is too much just before their wedding."
They added: "She has told him if he wants the wedding to go ahead he will have to stay home alone. Abbey is determined that nothing is going to get in the way of her big day."
Crouch will reportedly have a "quiet, family dinner" instead of a traditional stag party.
Clancy recently dismissed further allegations of Crouch's infidelity after he was reportedly spotted visiting air hostess Suzanne Thunestveitt at Dubai's Millenium Tower earlier this year.