No baby has ever survived “a lot younger” than 22 weeks. Earliest survival is 23 weeks and change
“No baby has ever survived a lot younger than 22 weeks. Earliest survival is 23 weeks and change”
http://www.telegraph.co.uk/news/worldnews/europe/germany/8469561/Worlds-most-premature-baby-to-leave-hospital.html
21 weeks, 5 days.