Hi, im new to this...my period was due on january 6th. I did 4 tests last week(clear blue digital) and they all came back negative

ive been trying for about a year now to get preggo and no luck yet. I had brown discharge(like a smear)on the 7,8,& 9th of this month and on the 10th i had very little pink/clear strechy-type mucus(one time that day). Ever since then i had mild cramps on and off, headaches here-and-there, i havent been able to get any sleep and then around 2-3 pm i wanna stay in bed. Most of the time i feel like i havent eaten anything or if i have a black hole(lol). on the 17th i had flu/cold like symptoms all day(very bad backaches,headaches,feet hurt,VERY EXAUSTED, and dehydrated, constipation and the chills). The next day i woke up fine like if nothing had happened! :/ hmmm...ive been nauseas and have thrown up in my mouth a couple times(sorry tmi...i have had twinges in my left & right ovaries....plz help i would like some advice or some answers on wat could b goin on? thanks <3