I'm not sure that I'd worry at 14 mos. I don't think it was until our son was 2 and not saying more than what seemed like a handful of words that the doctors got worried. I think at two the standard is 60 words. Might be wrong...my husband says it was 1 and a half.
There is no "should" about it or any other developmental milestone that your toddler reaches. Children are so completely different and have different preferences and orders they develop that saying a child should say so many words by 14 months is silly because its placing a wafty expectation on a child.
I wouldn't worry - I don't think my son was saying much if anything at 14 months.
If you have any concerns, early intervention will do a free developmental evaluation and let you know if there are any delays. If they are, then you have a jump on addressing them and early intervention will offer free or very low cost therapy to help address the concerns. If there are no delays, then at least you have peace of mind that your child is on track. It never hurts to check into it if you think there's a problem - moms know best!