Quoting Cap'n Obvious:" I know I need to give myself time to heal (physically and emotionally), but I just can't shake this baby ... [snip!] ... fever and he's almost totally sexually and emotionally withdrawn. I just don't know what to do or how to feel anymore."
I went through the exact same thing and actually got pregnant 3 1/2 months after my miscarriage... There's nothing wrong with having baby fever. You were expecting to be having a baby and now you are left with nothing, it's natural to feel empty and want something to fill that hole.
Don't start trying until you and SO are comfortable and have delt with the loss, but when you do, just know there's nothing wrong with it. You are not pushing the lost babies out of your life, you are simply moving on, they will still be a big part, believe me. I still think about my little angel and even felt guilty for wanting to try again after I lost him. These things happen and they just take time. I'm so sorry for your loss mama, if you need someone to talk to feel free to message me.