A little background - my FI and I have been engaged since 12/23/2010. Our WP has been set since Feb. 2011. That is over a year ago. To make a long story short one of our GM (we only have 3BM and 3GM) is not sure if he can do it anymore because his wife is almost 1 trimester pregnant. They live in Phoenix, the wedding is in Detroit. I understand her not going but I am not sure why he is backing out. We already have his tux and embroidered gift. The wedding is just under 2 months away. My question is, if he decides not to be a part of the wedding do we replace him or go with uneven sides? This means we will not be able to do the bridal party dance unless we let the BM without the GM bring up their date. Which poses another question, who do I pair with whom and what do I do with the gift? The MOH is my sister and the BM is my brother in law so they would remain paired. The other GM is FI's brother and BM is FI's sister. My third BM is my cousin. I was going to pair FI's sister with this guy who is debating leaving and my cousin with FI's brother. Can I pair a brother and sister or is that weird? I am very irritated. Opinions? Suggestions?