7 DPO and losing hope

7 DPO and I'm already losing hope. I felt hopeful and excited for the first few days after ovulation but now I just have a sense that I'm going to be disappointed.  I know it's still early and implantation can take 6-12 days but now I just feel like it's not going to be our month :( Anyone else experience these kinds of ups and downs of feeling hopeful?