@ Lynz - I´m glad I´m not the only one with no symptons. I was starting to worry as well. I´m 5 weeks and 4 days (haven´t got around to sorting out a ticker yet) - apart from very sore nipples and the odd bit of backache, i´ve not felt anything either. Not that I´m complaining, a friend of mine said she felt sick as soon as she dicovered she was pregnant.
I have noticed that I´m constantly hungry though, and could drop off to sleep pretty much all the time!