Emotional

Has anybody had this problem? Today i really didny wann get out of bed i did cause i had class didn't really attempt to dress I really talk to no1 i came home got back in the bed. Ive been giving my fiance a shitty attitude he keeps asking me whats wrong but idk what it is.. And I randomly cried last night nd twice today. Yes weve been ttc My period isnt for another week but im sure it would be to early to blame pregnancy nd my period isnt for another week I usally only get like this a day or two before. What could it be? My fiance gone alot cause of work could be possible to be depressed only when your so is not around