I have a Butterick pattern # 6301 that features a maternity vest, coat and belt.  This has a zippered panel that zips into the the jacket while pregnant, and can be reversed when the baby arrives to use with a purchased baby carrier. It is an adult size B5 - this is misses' sizes 8, 10, 12, 14 and 16.  This is a brand new, uncut pattern.  It is from a smoke-free home and shipping is free in the U.S.  Please check my other listings - I have many other patterns and will be glad to discount multiple purchases.