As far as I know there is no constitutional right to fertility. All the US has to do is to make sure everyone in the US is continually exposed to fertility inhibiting drugs in their food and drink. If people want kids, all they have to apply to Homeland Defense for a supply of undrugged food and water, priced only somewhat above market, as soon as their security and citizenship checks go through.
In Phase II this all gets privatized.
In Phase II this all gets privatized.