However, if you ask to decide an accurate timeline now, it is a debatable and devisive matter. It is more like a question of "does God exist", everyone has their own interpretation and ideas, and today's technology just can't prove him/her wrong whichever side they are on. So, it'd be better to leave this important decision to the mom's and physicians they trust and provide proper education. I trust no woman will make a light decision on this matter. We should respect their decision, and not to enforce some conservative ideology upon the body of all women's in this modern age.