http://www.mangago.me/read-manga/dame_na_kurai_ga_choudoii/
http://www.mangago.me/read-manga/work_in/ (last story)
http://www.mangago.me/read-manga/sorenari_ni_shinken_nandesu/
http://www.mangago.me/read-manga/koishite_daddy/
http://www.mangago.me/read-manga/roman_gousha/
http://www.mangago.me/read-manga/gochisousama/ (2nd story)
http://www.mangago.me/read-manga/ai_no_gebokutachi/
check out my childcare list
http://www.mangago.me/home/mangalist/7549/
it`s all yaoi though^^
Any yaoi or shoujo when the mains have to raise a child or one of them has a child