If u r sure u don't want this pregnancy,U need to see a Gynaecologist.Advicing as such is illegal. Further if u r sure u don't want pregnancy now u need to take medium/long term steps in terms of method/s for same. Pls see a good Gynaecologist/Obstetrician/Lady Dr as having recurrent abortions carries its own risks in terms of Ur physical/mental health as well it might also end up affecting Ur ability to become a mother in the future. So pls don't take it lightly n consult a Dr.