Short/Odd period...

Am

Hello all! I normally have a very regular 26 day cycle, with a 6 day period, spotting on the 6th day. This cycle AF showed up 2 days early, medium flow day one, heavy flow day two, very light flow day three, then 2 days of spotting. I started OPKs yesterday (CB advanced) and had the expected empty circle. This morning and then again this evening...flashing smiley.

I'll be 32 next month, was never on BC (always used condoms until wedding night), and have been TTC since then (July 2016).

Any thoughts?