The government has recently implementing a law in which you must apply to have children.
To prevent unsanctioned pregnancy and illegal child births they are looking for a way to control when either men or women are fertile.
Would it be possible to prevent either men or women from being fertile in a way that can be temporarily reversed?
Perhaps some sort of implant for women which can be removed by the government controlled doctors and reimplanted after the birth of the child. Similar to the current implant women can have.
Would this be feasible, or is there a better way?