If you are close to ovulation, EC may not be able to prevent pregnancy if you wait 5 days. Therefore, the best thing to do is take EC as soon as you can get it. A thorough and up-to-date academic review of the medical and social science literature on emergency contraception is available here .
Employer Identification Number - EIN. A unique identification number that is assigned to a business entity so that they can easily be identified by the Internal Revenue Service. The Employer Identification Number is commonly used by employers for the purpose of reporting taxes.
What do the first 3 digits of a social security number mean? The first three digits of a Social Security number represents the Area Number, or part of the country where the application for your Social Security card was originally filed. â¦ Prior to 1972, the Area Number represented the State where the application was completed; after 1972, the Areas have been assigned by zip code.