Possibly someone else who was around in the 1975-1980 time frame will remember this:
It seemed to be that prior to 1975, the message on children was "wait until the new system". However, it seemed to me at the time that after 1975 there was a popularization of child bearing. The Awake always had some fluff article on "natural childbirth", "parenting", etc.
With the combination of no fulfillment whatsoever in 1975, and with the drop in pioneering (maybe partly due to the end of selective service about this same time), a distinct downturn in growth followed this year.
I have always thought that with the decline in growth after 1975, the society realized that haviing children meant more members, and kind of dropped the advice to "wait until the new system". Does anyone else suspect the same? Or, have they now gone back to the wait & pioneer viewpoint?