kris,
Oh my gosh your timing is SO weird! I JUST saw my ob/gyn last week and happened to mention this horrid nausea I've been having, and he told me that it's VERY common for the hormones in the pill to cause it. He recommended that I try a few months off of the Seasonale, and if my periods become irregular/etc., he'll put me on a LoEstrin of some sort. I had been taking ginger for the nausea, but hopefully this takes care of it. Crossing fingers that the nausea goes away for all of us!
~pink