Just saying but anyone that interested in Kino's friend who had the OG dream (Innu) had a complete series from 150k words of Yachiyo's 9 months pregnancies to Yachiyo and Iroha's children growth. You can read it on TabunInu's pixiv or their privatter https://privatter.net/u/TabunnInu that has a lot of YachiIro's fanfic. It's all in Japanese though.

Umm, well actually even though SayoTsugu has a fewer amount of doujins on each event (=smaller fanbase) comparing to SayoHina, the quality is pretty good considering few of their doujins almost always on the top of the doujinshi store chart. I own several SayoTsugu doujins and all of them are pretty great but sadly have no time and resource to do the translation.