What variety of peach tree do you have? How old is your tree? Has it ever produced ripened fruit before? Some peach tree varieties ripen by early summer, while others not until late summer/early fall.
Are the sizes of the peaches normal or golf-ball sized? If your fruit is small and hard, then thinning your peach tree is highly recommended, which will allow more airflow and sunshine to reach the remaining fruit:
Here is an article from Virginia Cooperative Extension that specifically deals with growing peaches in your state.
fruit trees should be pruned inside to form a basket like shape. open inside where all branches recieve t good sunlight. to many fruits will stress the tree and retard ripening