When Reid talks to Max, he mentions that "the weekend before last week", he and JJ were held hostage. However, there has been a jump of 6 months between the hostage situation and this episode, further supported by Kristy telling Matt she is pregnant at the end of the hostage episode and her giving birth in this episode.
In the scene when Prentiss arrives in the nursery with doughnuts and wine, the wine bottle is unopened in her hand. A split second later, the bottle is opened, and re-corked and Prentiss has a glass of wine in her hand.