TMD, it is not too early for bloods [angry at your doc,
they should have offered you blood tests to measure your HCG level, this is only present in pregnancy and doubles every 48 hours in a health pregnacy,
this would be the case as soon as conception has occured, most pg tests work on 25 or 50 ml HCG to get a positive result,
your doctor knows this and has fobbed you off,
i am so [raged emotion] at the level of care you have recieved,
another thing, and not wanting to scare you but in VERY RARE cases a positive test followed but spotting/bleeding can indicate an eptopic pregnancy and for this reason alone he should have offered HCG testing,
stand your ground sweets...