Dyslexia in 7 (almost 8) year old boy? Or possibly something else?

My son is having trouble learning at school. He makes his numbers and occasionally letters backwards. He's unaware he's done it until its pointed out. When reading he'll throw out words that make no sense to what he's reading. Except that it starts with the same letter. Saying Place instead of Pig. He hates reading. He can read well sometimes but he doesn't grasp what he's read. If I read him a book a couple times he can read it back to me. But he won't be able to tell me what he's read about if I ask a question. He loses stuff all the time. He just can remember where he put it. He's eager to please at school but is far behind his cl. They took blood to test for fragile x and its scared me to death. He was a early walker and talker. And very talkative. He loves to talk just for the sake of talking sometimes and is very social. Im sad for him. He struggles so hard to be close to his clmates.