Due Date Heartbreak

Monica
I miscarried my first child at 6wks after trying for nearly a year and a half. Till this day I feel I lost a part of my being that day. I still have my "moments" when my tears get the best of me. I need advice please. 
My due date would have been December 6th...I'm afraid for that day to come. My husband and I both took the day off to celebrate/grieve in a way I think.  My question is what would you do on that day? Special activities? Day trip? Build a bear?
I'm at a loss on how to send love to my little one that day as well as heal. Any advice or ideas are greatly appreciated. Thank you