Yes this could be pouchitis, but it could also be several other things; stricture also comes to mind, as does a partial blockage. Pouchitis doesn't present the same way for everyone. If you're never had it before, it's best to see your GI and have it confirmed. Your GI would also be able to confirm or rule out stricture, blockage, cuffitis, etc.
Some things you may want to look out for, in addition to the above; telltale signs you may have pouchitis usually include increased frequency, very watery stool, feeling like you are not completely emptying, and a general feeling of malaise/fatigue.