Sickness and Ovulation

Hannah • Married to the love of my life and TTC our first baby!!
Will being sick with a fever affect your ovulation? I haven't tested positive yet with an opk, but I did have a fever of 100.2 the night before last (Sunday, the 13th)? Typically my fertile week is 4 days after my period.
This month my fertile week is right after my period.
Can being sick affect this?!