chart variations?

Stella • Aged 45 and been trying for our first little one since February 2017.
How does everyone's charts turn out from month to month? 
Do they follow a similar pattern every month or do they vary a lot and change shape completely every single month? 
I'm just curious really, as I've only been charting my temps for 2 months so far and I'm interested in how everyone else's look from month to month in comparison.