When to start trying again?

Crae
My husband and I had a beautiful baby boy in May. He had some health complications and passed away on June 3rd. We want a child so badly. But I don't want to feel like I'm replacing the baby I lost.  I haven't started my cycle since given birth.  I think I should wait to start trying til after my first cycle? Any ladies have been through this or have advice on what I should do? 
Thanks.