Fire Emblem: Awakening

Ive been looking all over but cannot find an answer. If you get the support rate to S will you automatically try and have a child or can you trigger it later?
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Pokemon Pearl FC 5111 9912 2211 Name AMI
Super Smash Bros Brawl FC 1289 7910 4315

All, yes, all questions related to children are answered in the stickied post above. It's a treasure trove of info.
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