Should my baby be this big?

Hi I have a baby girl she was born April 1, 2011, weighing 6.14. She's 2months now. She's weighing at least 14 pounds or more. Is this normal? I have a friend and her daughter is 6 weeks older than mine, and my daughter outweighs her. Plus I have another friend that had a son two days after me, and he only weighs 11 pounds.