Having a second child

So, I have a one year old baby girl (07/10/2018) && lemme tell you this girl is sooooo loved by EVERYONE, she is my entire world. I’ve always said I wanted 2-3 kids. We lost our son in 2017 (07/17/2017) today is his second birthday. My husband and I said that when our daughter turned one we would start trying for another baby, well I’m terrified. I can’t explain it, I’m just scared I can’t love another baby as much as I love her. She’s my entire universe, she saved me when I had lost all hope in life after I lost my son. She truly is my anchor. She kept be from sinking.

I’m just looking for advice/stories. Has any other mamas felt this way? I do want another baby but I’m scared, I don’t want any attention taken from her, which obviously will happen, I don’t want her to not feel loved, I don’t want her to feel replaced..