I'm thirty-five weeks, and I have been quite queasy lately. It hasn't been bad enough to make me throw up, but I wake up every morning feeling quite green around the gills.
It's really weird though, considering I never had morning sickness or nausea in the first trimester! But I can see, I didn't miss out on much! I used to get this way with my cycles though (I would have gradual nausea come on with AF and become severe nausea as ovulation approached, then after ovulation, I was fine). It feels very similar to the nausea I would get around O each cycle, so I'm sure it's something hormonal with pregnancy. Fortunately, ginger helps take the edge off the nausea, but I'm still a bit queasy all day until evening.
It sucks, though, to think you're in the clear with morning sickness and then have it come on so late in the game!