OK NOW IM MAD AND CONFUSED HELP ME PLEASE

Ok. AF was supposed to come on the 1st of this month and never showed. I haven't even got a sign from her maybe some slight random cramping. How ever i haven't signs of pregnancy mayb so nausea and thats it. I order those free pregnancy test from conceive easy and keep getting BFN im so frustrated and confused i could cry. HELP ME WHAT SHOULD I DO