Babies don't typically sit up at 3 months old.... they're barely holding their heads up and rolling over by 4 months old. Many studies have shown that early sitting has actually been an indication and sign of autism. Maybe you should get him seen.
I think what she means by no pumps. Like no battery powered one. No big. Setup required. Like you just pumped with your hand. Or she means. You can use a bicycle pump. Not a battery powered fancy. One.
