I seriously need some answers plz guys i desperately want a bby :[?

OKAY! i want to get pregnant so bad right now i can't stand it. allthough i did have a miscarriage december 2nd and my first period came janurary 26th.. now it's march 11th & no period now that i think about it my schedule has changed completely i used to wake up at like 10:00am and go to bed around 1 or 2 && now i go to bed about 6:00-7:00Am and wake up around 4:00-5:00 pm.. so that could screw up my periods. but idk. i've took several pregnancy test and BFN!! just took one a few minutes ago also and bfn! UGHH i'm nauseous, bigger , veins through them, moodswings. i could swear that i'm pregnant but i don't have to bfp to prove it question is what do you think is happening to me...&& even though i didn't have my period this month do you think i'm ovulating now?? btw i have no std's or infections or anything AND i'm having clear muscusy discharge & have been for about a month! SHEWWW