I've been playing off and on with the new Story Progression -- Neighborhood Stories. I haven't explored all the facets yet, but here is what I've discovered.
Getting other Sims to get pregnant is fairly easy. Once you reach "friend" status, your Sim can "Discuss expanding the family." Sometimes the response is negative, but if the other Sim says they'll talk it over with their spouse, you can expect a nooboo to show up a few days later. Your Sim can discuss expanding the family with unmarried Sims, but so far I've not gotten a positive response.
Regarding jobs -- your Sim has to "Ask about career" first. After that, the "Ask Sim to pursue dream job" is available. Responses to this have always been negative for me, but Eliza Pancakes did call back to say that she was excited about her new job.
So far, I've not encouraged anyone to get married or even engaged, but Alice SKL and Geoffrey Landgraab are becoming friends. Marcus Flex thinks Liberty Lee is great, but Liberty doesn't seem too keen on Marcus. I'll have to wait and see. Sometimes, my Sim will get a call asking whether she thinks one Sim should get to know another Sim better. She always says yes, so we'll see if there are any results from that.
One thing I like about this approach is that I have almost total control. I can initiate the pregnancies or job changes or not. My Sim has not been inundated with phone calls, 2 per day at most. That might change as she makes more friends. And the phone calls always have negative options.