You can do any of three things:
1.) During the latter part of your cycle, your natural discharge will become thicker, more opaque, and possibly white. Itching could just happen as you become drier.
2.) If you are getting recurrent infections (possibly yeast), you should probably check at the gyno to see if there is something he can do for cyclic infections (always happen at the same time during your cycle). It's most likely not bad, just better to be safe and get things checked out. If you keep treating for yeast infections, the yeast could be resistent to the over-the-counter medication, so the doc could give you an alternative or something stronger.
3.) Check out vaginal strep. I know there's not a lot of info online, but check with your gyno. It has a thicker, whitish/creamy discharge that is adherent, quite itchy, and has a distinctive, nonoffensive scent.
Your period's date can certainly move around... probably the only women who have fairly consistent periods are on birth control (and a few lucky naturals)! Your period can come anywhere from about 25-35 days after the start of your last period. Even if they come say, every 28 days, a calendar month is 30 days, so the date will seemingly be moving back every month.
get an over the counter yeast infection medicine and try to treat it. if it doesn't work, the dr may need to put u on antibiotics. but try the otc med first, monistat is really good!
Thanx but i'm not on anything so what now
When I was on the pill I would get a yeast infection every other month right before my period. That could be what you're experiencing. I think it's normal for your period to be off by a day or 2 each month....it usually won't come on the same exact date every month.