scared to test this month

last month I was a wk late took a test came back neg. started next day :'( supposed to start the 2nd of June but scared too...during my O my boobs have been hurting (never has happened b4 during this wk) I'm tired all the time & I keep thinking I'm smelling things I can't explain. ..I just don't wanna be disappointed yet again. ...we've been trying for over a yr & half now & nothing. ..really starting to feel discouraged & ready to just give up!