November 2006 will be a month that I will never forget.
<img alt="twin-to-twin-transfusion" class="alignnone wp-image-23756 size-full" src="/sites/pavilion/files/uploads/2011/09/twin-to-twin-transfusion.bmp" style="width: 552px; height: 310px;" /></p>
Pregnant women carrying multiples are at higher risk and have different requirements when compared to those carrying a single fetus. In November 2009, the Institute of Medicine (IOM) published new guidelines regarding weight gain during pregnancy and provisional guidelines for women carrying multiple fetuses. The guidelines do not address women carrying triplets or more, but the provisional guidelines for women carrying twins are based on body mass index (BMI) and are as follows: