Twins, Triplets & More Support Group
Triplets & More","This community connects people seeking information and experiences about multiple births. Different names for multiple birth are used, depending on the actual multiple. Common multiples are two and three, known as twins and triplets respectively. Share your thoughts and find whatever support you need."
And I also have read that babies are viable at 24 weeks - but obviously there are lots of potential complications (at birth and in later development) that can arise due to prematurity, so the longer they gestate the better! Good luck!