Plot summary
Jay asks Michael to get a vasectomy, but he says no. Eventually he tells Jay that he will go through with it, but then backs out at the last second. Jay says that she will instead get a hysterectomy. After she comes out of the clinic, Michael tells her that he will get the vasectomy, but she then reveals that she is pregnant, which ends the series on an unresolved cliffhanger.
Credits
Adapted from Wikipedia contributors, List of My Wife and Kids episodes. HTML formatting and reference markers removed.