Which episode was Lois (Jane Kaczmarek) not in?

Lois was not in 5 episodes all together out of the 151. She was not in “Clip Show” (while she was in clips from previous episodes, she was not in the Cold Open or any other scenes created for that episode). Other episodes which she did not feature in at all, include: “Boys at Ranch”, “Kicked Out”, “Stereo Store” and “Hal's Friend”. The absence had to do with Jane being pregnant in real life too, with daughter Mary Louisa (born November the 25th, 2002).