Feeling 'meh'? ?

We're only on our 3rd month of trying, but I'm already hating feeling dissapointed each month? I'm currently on my TTW & I'm due for AF on 20/10/14, I've already taken 3 tests since 7dpo (crazy I know!). I just want to see that 2nd pink line show up soooooo much!! My boobs hurt like crazy today & I'm feeling a bit down so I'm pretty sure I've got PMS & am out again this month? Has anyone else got this dispondent so early in TTC? I feel silly!