It's a TIE between jkclosso and Addicted2TheKnot.
https://community.thebump.com/cs/ks/forums/thread/47167660.aspx
Guess you two will have to put your heads together for the next siggy challenge 
BFP#1 May 17, 2008
Surgery for ectopic pregnancy June 3, 2008
******
BFP #2 September 25, 2008
Baby boy born June 4, 2009 at 40 weeks
8 pounds 13 ounces and 23 inches
******
BFP #3 February 6, 2011
First U/S February 25, 2011 = TWINS!!!
Boy/girl twins born October 4, 2011

Re: ***SIGGY CHALLENGE WINNER***
Woohoo!! I'm so glad that curse of a gift could turn into something good
Addicted, I have a really good idea for our next challenge!! We'll discuss when you get online
Summer 2011