On this week's Grey's Anatomy…

Miranda has some doubts about her wedding with Ben.

Derek's has his operation after Lizzie has surgery in two legs to donate her nerves.

Meredith shares her pregnancy with Lizzie.

Alex lets Jo work on the surgery, but she messes up. She tells Arizona that Alex wanted her to fail and that he was going to fire her.

Cristina learns that Owen wanted a divorce to help with the settlement. She asks for the two to try again.

Jackson and April each bring an intern on a date for the wedding. Alex also gets one as well.

Adele has complications. Miranda decides not to go to the wedding to help Richard's wife.