It was confirmed by Channel 5 this evening that the four housemates will face the public vote ahead of Friday's elimination show.
Deana has now been nominated twice in a row, having survived last week's eviction at the expense of Andy Scott-Lee's fiancée Lydia Louisa.
Becky, who arrived in the reality show after her fellow competitors, is the only housemate not to have been nominated before.
There has been much controversy surrounding Conor's place in the house, after threatening comments he made towards Deana prompted nearly 1,000 complaints.
Big Brother's fifth week sees the most nominated contestants in the series so far, after three were placed up for eviction in the first week.
Reactions to the nominations will be shown on tonight's episode of Big Brother's Bit on the Side at 11pm on Channel 5 immediately after the main programme.
Voting for this week's eviction is currently open online via the Channel 5 website.