Anyone have very irregular periods ?!

LaTerria
The last 2 months AF came 4 times !! Twice each month about a week and a half to 2 weeks apart ! It's been 16 days now and according to glow, AF is due Jan. 6 ! Im patiently ( not really lol ) waiting and hoping that it doesn't come and I get my bfp ! Anyone have similar cases and got a positive test ?