See! See! When you institute controls on a commodity, shortages always happen:

A Brussels fertility clinic claims it is being swamped by demand from French lesbian couples seeking fertility treatment.

"Last year, of the inseminations using a donor's sperm, 72 percent of patients came from France, with a majority of them being homosexual," the Erasmus fertility clinic's head Anne Delbaere told La Libre Belgique.
...
"We haven't got enough sperm samples in stock to meet all the demand," she said. "We don't want to close access to French female couples, but we can't welcome them at the expense of heterosexual couples," said Delbaere.

In a perfect world, someone out there would set up a business that connected willing couples with willing donors at whatever price they thought would make a profit. While the US has the entrepenurialism to make it happen, we're so hung up on the social implications it probably never will. Somewhere in Latin America though, a businessman probably has a cunning plan...