give it another week which will seem like forever but, you have to wait in order to get the results you want! your hcg levels are probably not high enough. but other than that sounds like your pregnant!
i agree its only been 3 days...ive been 2 weeks late and still have had a negative test. its annoying i know but its all apart of being a women. we get all the fun haha jus relax and maybe wait a week or 2 and then take a test and see.