Had sex yesterday, today vaginal dryness+ itching+soreness also have sore nipples, definitely not a std what could this be?

Some basics: If you were exposed to a condom with a lubricant or spermicide you could be reacting to the material the condom is made of or the chemicals. A lubricant you used in the process can also be a trigger. Nipple soreness likely reflects minor trauma during the sex. A wash or douche used after may also trigger such local skin irritation.