I was never really sick during either pregnancy. First time (not nursing,
obviously) I was horrendously fatigued for the first month or so and if I
leapt out of bed in the morning, might feel slightly nauseated for a few
minutes. Second pregnancy (nursed all through it) I didn't even get the
fatigue, but felt vaguely nauseated once in awhile. Had no nipple tenderness
either, which surprised me.

Leslie Ayre-Jaschke, BEd, IBCLC
Peace River Breastfeeding Clinic
Peace River Alberta, Canada