Always get emotional when AF arrives?

Nicole • 11 years together 👫 10 years engaged 💍🌈 Hayley 👩‍👧
I have been ttc for nearly 4 years. Each month I get so emotional when my period arrives. I'm starting to think it's never going to happen for me. I'm never going to feel a baby grow inside of me. I get so depressed around this time. 
​Does anyone else feel this way? So helpless?