When grown naturally, some fruits will be smaller, some will be larger. There will be some deviancy from the average size. That's nature, it comes with its faults. Should be okay for consumption. What is frightening is when they are all exceptionally large. I once came across a batch of strawberries the size of apples (regular red delicious size) and were put off by them. It struck my mind then they could very well be genetically modified, courtesy of Monsanto.
Cheers!