The answer here isn't static since the number will change as days go by...
There were 13 weeks between October 1 and December 1, 2009.
A little over 17 weeks since the 28th October 2009.
how many days are ther until October 29
It was 39 weeks.
Weeks from October 1 2007 to May 31 2009 are a little over 86 weeks.
12 weeks three days
There are 117.4 weeks from July 2008 until October 2010.
As today is January 27, 2010 there are 141 weeks and 1 day until October 11, 2012.
40 weeks
If you concieved on October 28, 2009 you will be 11 weeks on January 13, 2010.
This is a constantly changing number. If you are referring to the week of August 13th, 2012, you have 7 weeks until October 2012 arrives.
91.9 weeks