I'm not even quite 6 weeks pg but am suffering from awful tiredness - i mean to the extent where i am worried it might be dangerous. today i nearly fell asleep in a cafe with dd, and again while out in town and i am worried about driving. I'm getting more sleep at night than i was; dd has recently slept through for a few nights. i've been taking sanatogen pronatal to ensure that i'm getting enough vitamins/ folic acid etc.
might it be low iron or something?