Three of my boys were potty trained all at the same age 2 years and 10 months. Just the magic age with them. Within a week of being day trained, they didn't wet again at night. Just that easy for them. I limited liquids too, and we did sometimes get them up right before we went to bed and took them, but not always.
Now, one of my boys was still wet at night for years, and even had trouble controlling it during the day. When he said he had to pee....it was coming. We did a lot of testing, and when he was probaby 8 or 9, took him and had him allergy tested (because his urine wasn't concentrating like it should). When we took him off of the offending foods, he instantly was dry every other night, which was so much better than every night.
We never ever made a big deal about it. The boys were NEVER allowed to tease him. By the time he was about 12, he just started staying dry all night. Pull ups were getting really small for him, and we weren't sure what we were going to have to do. He has had some other issues, like he is bipolar and has learning difficulties, but I don't think it had anything to do with that. Poor guy though...he just got all the hard things.
He's still young Kellie. I wouldn't worry about it for another few years, and then maybe talk to the doctor. Being wet till he's 8 or 9 is actually quite common. He could have an allergy though that prevents his urine from becoming concentrated at night like it's supposed to, so you can keep that in the back of your head for future reference!!