What is going on?!

Hannah

I was due to ovulate a few days ago (based on my last cycle) but my cycles are highly irregular as I've come off the pill in November. 55 days, 43 days, 28 days etc. What on earth is going on with my temps? Why are they spiking up and down so much? I temp at the same time every day and dont get up or move etc. Havent had any signs I'm going to ovulate soon whereas last cycle I had loads of ewcm