How dieting affects my cycle

Alright guys I’ve been researching but can’t find the answer. I did a juice cleanse 18-20th (af started 19th and ended 22nd- VERY short bc I usually have 6-7 day periods.)

I’m curious if that could have interfered w my cycle. Also, I usually have 29 day cycles, ovulate around CD15. I’m on CD8 today and having cramping like I usually get with ovulation. Is it possible that if juicing affected my cycle, I’m ovulating this early?! Is that impacting my chance to conceive this month if so? Thanks for your thoughts!!