okay i had my last period on august 14th ended on august 19th had sex with my husband on august 28th…

okay i had my last period on august 14th ended on august 19th had sex with my husband on august 28th and i havent started yet bern verg nauseated and peeing alot n took a test today n it said negative but i have mucus now when i wipe n i am tired alot n certain smells bother me n also i feel like i am having period cramps n nothing. just wondering could i b pregnant but its not detecting it yet on the home tesg