Ok, period is now about 13/14 days late did test on Sat, (10 days late) was negative, stil have foul taste in mouth and am feeling nauseous. Had terrible pains about a fortnight ago, as i remember from ds pregnancy. 4 days since test and dtill no period. Am thinking should try again, but don't want to waste the other test (as they are so pricey)! But am frightened now that could be some other problem for example would an ectopic pregnancy show negative or positive. Was thinking would do test 2 tomorrow, then visit dr on friday if af still not arrived. Any tips?