Jemegee, I have felt the exact feeling that you are feeling and alot of it is because of the emotional scars that loosing a baby leaves you with...
I have had 8 miscarriages and have three healthy children now and my tubes tied and I also still feel like I am pregnant sometimes, I know that it sounds weird and maybe it is to some people, but I think it is just emotional scars.
I hope the best for you and your family, god bless,
mamabearof4
ps. Almost forgot, I have a step son too!