I don't see why ppl must give their opinions on when I should have another baby if they don't know…

I don't see why ppl must give their opinions on when I should have another baby if they don't know how I feel. Once my doctor said its okay for me to try I have been trying. I'm not trying to replace my son cause only God knows how much I loved him since before I even knew what gender he was ! I just have this need to be a mom , this need to love a little me and show them I can be the best mom in the world. I just want to be able to sit down with a child of mine at night and just admire him or her. I need to be called mommy to feel complete in this world. Being 5 months pregnant and being half way to the finish line is a great feeling .. Now imagine one day to the next being told your child will not survive .. No one knows what that feels like & they cannot imagine either so I don't want to be told I should wait .. If I made it that far who says I can't make it further ?