In general the payer is not required to send a 1099-MISC to a corporation. Most companies would rather not send them out if they don't have to. There are exceptions, though. Are you by any chance an attorney? A 1099-MISC is required for attorney's fees, even if paid to a corporation.
What's important is reporting the correct amount of income. It doesn't really matter whether you file before you have the 1099-MISC. The 1099-MISC doesn't go on your tax return. Entering it in TurboTax is just for your own records, and to encourage accuracy. Only the total amount of income actually appears on your tax return. Your records should be good enough that you would report the correct amount of income even if you didn't get the 1099-MISC.
