The answer to "Am I just being an overly protective and paranoid mother here??" is yes. Deacon sounds very normal. I have known SEVERAL kids that didn't walk or talk until 14 months and beyond. In actuality, the longer he crawls, the BETTER for his LONG TERM cognitive development. The crawling motion stimulates the Cerebellum, which is the part of your brain that processes ALL of your thoughts. Dr.’s actually “prescribe” crawling to people with short term memory problems. So instead of worrying about him NOT walking, get down there with him and let him chase you as crawl all over the house.
As for the speech: AGAIN, don’t worry so much. “I just want him to be able to start communicating with me.”- you can teach communication in many ways. If you ask him to “go get the ball” does he get it? Then he is starting to communicate with you. If you want to try teaching him sign language, you could try http://www.aslpro.com/cgi-bin/aslpro/aslpro.cgi to learn the signs. Children can OFTEN sign before they can speak. My son used 6 regularly. The one’s he used were milk, more, eat, help, dirty, and water. He still (now 2 ½) uses more and help on occasion, which BTW, where the absolute most WONDERFUL signs I could have EVER taught him. Even the few people I’d allowed to baby-sit him pre-speech said that if they had another child they would DEFINITELY teach their child those two signs.
As long as he seems to be achieving new “talents” on a regular basis, then I’m sure he is fine. When in doubt, then you and his Doc should talk it out! If his Doc was concerned at his 12 month, they would have let you know. You’re doing a GREAT job as a mom. Keep it up and take care~ J.