15 month baby not walking?

Is it normal for a 15 month old baby to not walk yet? She’s taken 2-5 steps but doesn’t seem ready to go off on her own. She’s also on the heavy side weighing 30 pounds so she’s super chubby and thick so maybe that’s why? She’s met all the other milestones and can stand by herself long periods of time. She’s super super active can out crawl me.