And if, from and after the passing of this Act, any woman in Scotland shall conceal her being with child during the whole period of her pregnancy, and shall not call for and make use of help or assistance in the birth, and if the child be found dead or be amissing, the mother, being lawfully convicted thereof, shall be imprisoned for a period not exceeding two years in such common gaol or prison as the court before which she is tried shall direct and appoint.