Skipping Months

Hey so I have been skipping every other month for the past five months. (Period in Oct, none in Nov, period in Dec, none in Jan, period in Feb.) There's been added stressors, but it just seems so weird that is has been consistent. If it is a pattern, I'll predict skipping this month. Does anyone have advice or experience? Do I wait to see if this month skips to reach out to my Dr.? I haven't been on BC for five years now.