It's generally not recommended to sit a baby up at 3 months old.
Babies develop at their own pace, and sitting up too early can put pressure on their still-developing spine and neck muscles.
At 3 months, babies are still working on strengthening their head and neck control, and their core muscles are not yet strong enough to support sitting upright.
While it may seem like a fun activity, forcing a baby to sit up before they are ready can lead to discomfort, pain, and even potential injuries.
Instead of sitting your baby up, focus on tummy time, which helps develop important muscles for rolling, crawling, and eventually sitting.
If you have any concerns about your baby's development, it's always best to consult with your pediatrician.