I believe in the middle of the first season Spike becomes pregnant.. but not until the the middle of the second and third does she have the baby. I read this online.. and I thought ," Wow that is one really preganncy!" lol

I have seens ever episode of Junior High and High, and what happened was that Shane stopped paying Spike child support and saved up the money for a concert. He took adcid, and jumpr or fell off a bridfge resulting in brain damage.. if my memory is correct.