well count them and then you will see
there are 30 to 31 weeks
About 78 weeks between June 2009 and December 2010.
If you concieved on October 28, 2009 you will be 11 weeks on January 13, 2010.
There are 99 weeks (23 mounths) between February 2009 and December 2010.
A little over 97 weeks between January 28 2009 and December 12 2010.
74 weeks between June 1 2009 until November 1 2010.
56 weeks and 3 days
8
43 weeks and 2 days.
49 weeks, and 5 days.
86 weeks and 1 day.
Jan 1st - Oct 31st is Forty weeks and two days - according to my Windows calendar !