Since I have little or no guidance on baby development, apart from KKIA visits and its baby record book, I turn to interwub. I found this, the best infographic about baby milestones ever! And also a YT channel (PathwaysAwareness) about typical and atypical baby development.
It helps a lot for a noob first time mum like me.
Source: Early-Childhood-Education-Degrees.com
2 months
4 months
6 months