The article, report, and book document classes recognize only three font size-related options: 10pt (the default), 11pt, and 12pt.
Note that 14pt is not a recognized option. If it's specified, it is not acted upon -- at least not at the document class level -- and the default of 10pt is used. If you look in the log file, you'll find the following warning (not error) message:
LaTeX Warning: Unused global option(s):
[14pt].
What to do? You need to switch to a different document class. Some possible candidates are memoir, the KOMA-Script classes (scrartcl, scrreprt, scrbook), and the extsizes classes (extarticle, extreport, extbook). If you're otherwise happy with the article class, switching to extarticle may be best as doing so won't require learning anything new.
12ptlooks like10pt? Can you show how you did that? – Werner Feb 02 '18 at 05:42