As of today 10-27-2013 I am 22 weeks 5days pregnant when is my due date
Just remember, no date, calculator or book will be exact. You could be weeks early or up to a week late. Also, since this depends upon when you 'think' you got pregnant, that throws a couple days variable in the equation also.
That is actually a better question asked of your doctor, it can somewhat depend on the growth rate of the baby and your diet, sorry I couldn't give you an exact answer.
I agree with Chrisoo11 and the estimate time of a pregnancy is nine months, so for you it might be somewhere between January and February.
Here's a web site that tells you how to calculate your due date:http://www.perinatology.com/calculators/Due-Date.htm