Does the size of the my uterous create a problem if in the near future II want to deliver kids naturally? I been told I have a small uterous

Unlikely. The uterus is a muscle with will grow with pregnancy. Ask your md to explain what he means by "small" when the uterus is not pregnant is is normal to be small. Ask about other medical conditions of the uterus which may be present. If you still don't understand seek a second opinion.