you can try my list, just few ╥﹏╥ http://www.mangago.me/home/mangalist/29698/
single father yaoi list
http://www.mangago.me/home/mangalist/7549/
i don`t know until how old of a child you would consider a baby, but here ist the first that comes t my mind:
http://www.mangago.me/read-manga/sukijanai_kedo_aishiteru/
Guys am looking for a yaoi with baby's help please