Allison Baden-Clay's diary shown in court

Brisbane mother Allison Baden-Clay wrote in her diary that she felt "dirty" and "sick" about her husband's affair two days before she went missing.

Jurors in Gerard Baden-Clay's murder trial have been shown photographs of pages of his wife's diary, which was recovered by police from under her bedside table.

Baden-Clay reported his wife missing from their west Brisbane home in Brookfield on April 20, 2012.

Her body was discovered ten days later on a creek bed in Anstead, 13km away.

The diary contained handwritten entries from 2010, blank pages, scribbles that looked like children's drawings and a handwritten entry on April 18, 2012.

The entry at the back of the diary included a dot-point list over two pages of apparent questions from Mrs Baden-Clay relating to her husband's affair with colleague Toni McHugh.

The entry also included a hand-drawn floor plan of an apartment which the court has previously heard was Ms McHugh's.

Many of the questions were crossed out.

"Drive together - seats down - lie there afterwards - how many times - do afterwards," part of the handwritten entry read.

"How paid for hotels - did she ever say feel bad because you're married.

"How many people in office knew that you knew - how did that feel.

The diary continued: "Really hurt - had so many opportunities to tell me -let me believe that it was all my fault and therefore I was at your mercy. "Forced me to walk to you. Think that's where you wanted me."

Further apparent questions for Baden-Clay were "do you regret the whole thing or just being caught" and "were you prepared to live with the guilt if I hadn't found out".

The last words were: "Find whole thing dirty - maybe I'm prudent (sic) - still get sick in stomach"

Baden-Clay has pleaded not guilty to murder.

The trial continues.

AAP mjf/np/ldj/pmu