Any women that don't ovulate every month?

Amy • 31, hopeful to be a mommy someday!
I've been using OPK this month & have been getting all high results (blinking smileys), but no peak results (solid smileys).  It's been 6 days of high results.  Now that I'm 30, my cycles have been getting longer...38 days.  Is it possible that I'm not ovulating?  I'll be seeing OBGYN next month for an initial consult.  Does anyone know what I should expect?  #worried&concerned