i think 22 days is short and therefore irregular...but im no expert...talk to your obgyn as a start.

Per my OB, yes that's irregular. Mine are like that, and I always told her that they are regular. Found out after TTC for 2 years that they were "irregular".

I just started using the Clearblue Easy monitor, which told me that my "peak" fertility days this past cycle were 12-13 days before I got my period. This was 11-12 days into my cycle.

It's a little hard to tell if you aren't monitoring ovulation. Stress can delay ovulation, but PP is correct that in general one would expect their luteal phase to last about the same amount of time (within a couple of days). I don't see harm in seeing a doctor.

Is your luteal phase roughly the same (within 1-2 days) each time? Are you ovulating? The shorter periods (22, 24) make me think that you likely have a luteal phase defect.

My last five periods (since i started keeping track) have run the gamut from 22 to 30 days. 30 days once, 22 days once, 24 days once, 26 days twice. Is this considered an "irregular" period? I ask because I have read that if you are TTC and 35+ with an irregular period you should see your doctor about it. Is this "irregular" enough to see my dr about it when I haven't been TTC for at least 6 months?