Interesting info actually on the baby centre website. Even going by their ‘corrected’ age of 8 months they are still behind;
Eight months
Achieved skills (most babies can do)
Emerging skills (half of babies can do)
Advanced skills (a few babies can do)
Eight months
Achieved skills (most babies can do)
- Sits without support
- Says "dada" and "mama" to both parents (isn't specific)
- Begins to crawl
- Passes object from hand to hand
Emerging skills (half of babies can do)
- Stands while holding on to something
- Crawls well
Advanced skills (a few babies can do)
- Pulls self to standing position, cruises around furniture while holding on
- Picks things up with thumb-and-finger pincer grasp
- Indicates wants with gestures