Chart question :)

Sarah • We just had our rainbow baby 2/3/19 after 5.5 years of ttc and 3 miscarriages.
How am I looking lol this is my 1st round of clomid. I have PCOS and my charts have never looked like this... They're usually all over the place. My chart changed yesterday and is now saying I should expect AF on the 5th instead of the 9th and that I ovulated yesterday. Do your charts change so suddenly?