I am sorry for this delayed reply to your gardening question. We are transitioning to a new Q&A system and your question was unfortunately lost in the transition. I have discovered it now and hope this reply is not too late to be of help.
Your peaches probably have been attacked by the plum curculio, a small weevil that lays an egg in the fruit causing young fruit to abort and older fruit to end up with a worm inside. Your County Extension Office can suggest appropriate sprays for managing this pest.
The pear tree just needs more time to ripen its fruit. The normal ripening time may still be a couple of months away.
Thanks for the question. Please stop in again soon!
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