Akademik

adj.

Of or relating to policies or actions that encourage couples to have more children.

"In the United States, birth rates have been below replacement [level] for 25 straight years...'Pronatalist' policies, such as the newly enacted $500-per-child tax credit in the United States, are important, but the results are uncertain."

— Ben Wattenburg, "The Population Explosion Is Over", The New York Times Magazine, November 23, 1997

Here's the earlist citation (which, happily, also demonstrates the opposite word — anti-natalist):

"There has been a striking turnaround in many Idcs' official attitudes to increasing population. A few (eg, Cameroon, where birth control is illegal and family allowances are designed to push up the birth rate) are still pronatalist. Most are now anti-natalist."

— "The reproduction function," The Economist, January 8, 1977