How can i do a natural miscarriage. am not ready to have a baby.

Not a natural way: Fortunately, America is beyond that (that was before modern medicine and before getting rid of laws against inducing miscarriage). Any woman who needs to induce a miscarriage (easier to say abortion), such as if her baby fetus has a genetic defect or other major birth defect, can get help from her Ob-Gyn doctor. The doctor has good, reliable ways to do this ("natural" is not in the picture).