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.
Individual Taxpayer Identification Number. An Individual Taxpayer Identification Number (ITIN) is a United States tax processing number issued by the Internal Revenue Service (IRS). It is a nine-digit number that begins with the number 9 and the digits 4 and 5, also known as second section (xxx-xx-xxxx), range from 70 to 88, 90 to 92 and 94 to 99. Temporary identification numbers are issued to the main taxpayer only and these numbers are usually triggered after a 45-day suspension period.