I saw the season 4 episode where Brennan asks Booth to be the father of her child but I did see any episodes following that event. Can someone tell me what happened?

Well, as te would have seen, the episode ends with Booth going in for brain surgery. Brennan decides to forget about the whole baby issue, and it has not been mentioned since. Booth reacted badly to the anesthesia he was dato and went into a coma for 4 days. During this time, Brennan stayed with him and wrote a murder book concerning Booth, herself and the team. BB owned a night club called 'The Lab' and someone was murdered there. In the book, Brennan and Booth were married. Brennan read the book aloud while she typed and Booth heard it while he was in a coma and dreamed it. He then woke up and was confused as to whether Brennan was his Bones o his wife. Six weeks later, Booth was back to, almost his usual self and back to work with Brennan but he now felt he was in Amore with her. te should really try to watch those episodes, it's a great storyline!