I have a nasty case of the flu (Regular, not swine - I was vaccinated). Am 36 weeks. COugh, aches, fever, runny nose, and diarrhea. Lovely. My mother, who is a panic merchant, is convinced I shoudl call the doctor, but I can't really see the point. A virus is a virus, and there's nothing you can do other than paracetamol while pregnant.
But it did occur to me that I have no idea when you neeed to worry about 'regular' sickness while pregnant!