Having a sad day

Jessica • Dating 11/7/05, Engaged 6/10/10, Married 11/11/11-- Teacher and mom of 3 bulldogs. TTC #1 since 01/2013!
Hi all, 
​I'm only 3dpo, but I already feel sad like I know this month will be another failed month. I'm just having a sad day. We have been trying for a year and 3 months. This cycle I had my first round of Clomid and I am praying that it works the first time around. I'm just sad today. I feel like I know I will have another bfn. I'm always trying to be optimistic, but today is just one of those days. Any words of encouragement are appreciated. Thanks for all the support.