What can you take at home to cause a natural miscarriage?

Not recomanded : I don't think any doctor will advice you on that. Go and discuss edith your gynecologist your concerns and intentions.

Oxymoron.: A natural miscarriage cannot be stimulated - then you are talking about induced abortion. Terminology aside, i would highly recommend that you seek medical care and not self-medicate for such sensitive and potentially life-changing issues. Complications from unsupervised abortions include permanent sterility, hemorrhage, death, infection. Please talk to your gynecologist if you are planning this.