my boyfriend and i have been trying to conceive. my period always comes on the 17th of the month, but i havent gotten it yet. im always tired, sore, back hurts, headaches, im always hungry even after i eat. i have to pee all the time. i havent been stressed lately, everything is going pretty well. but i have taken 2 test one last week and one 2 days ago.. both were negative. i usually get my period cramps a week ahead of time, and i didnt this time. my friend told me to wait another week and try again. or see a doc if its still neg and period hasnt come... am i pregnate, and the test just isnt reading right.