I had the opposite problem ... my morning sickness impacted the rest of my workload through my pregnancy because I had to miss so much work (or modify my computer time) because I was so sick & miserable.
After week 20, I had other problems w/my baby to deal with that made it stressful & made me easily distracted everywhere!
And I was in the office 4 days/wk. so I don't think it's related to being a WAH person.
Blame your hormones.
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Liz
DD (3/2010)
"Make mistakes! Get messy!" - Miss Frizzle