lam - it's amazing how stressful it is not to feel sick, hey? i was exactly the same way and had worked myself into a state of panic by the time my 12 week scan came around - it'd been 8 weeks since my HPTs and BT to confirm i was PG and it felt like an eternity! i felt quite emotional when we actually had the scan & seeing that everything was alright. i hope you get just a teeny bit of nausea to put your mind at ease seriously though, i think the really bad tiredness kicked in for me at about 7 weeks so you might still have symptoms to come! and congrats on your PG - hope you have a very happy & healthy PG