have u gotten your period? if its not due yet, when did you start feeling these symptoms? one week? two weeks before your expected period? if so, then it’s realistic u may be preggo … light headeness comes from increase in circulation and drop in blood pressure from hcg (pregnancy hormone) and not having an appetite may stem from early nausea and distaste for foods (very common in pregnant women) take a test they’re cheap you can get them anywhere…ur boobs hurt? hard or tender nipples? bloating? unusually tired?