I take birth control pills so that I have a period every three months (and always use condoms during sex as well). This Wednesday I came off of them to have my period. Normally my period will actually start 2ish days after I stop taking the pills, so I figured that Friday it would. Thursday evening I even had cramps like I usually do the day before my period starts. However, Friday I came down with a fever (starting to get better this evening), and now it's Sunday and I still haven't started my period. I'm worried why it hasn't come yet, since it usually only takes a few days after I stop taking my pills, so I'm wondering if being sick could have any affect on someone's cycle. Any insight would be really appreciated!

-T