SC, my 15 week suggestion was upon comments on all sides made on the subject here at The Cooler along with statistics on
natural miscarriages which occur mostly in the first 12 weeks. With potential mothers not knowing they are pregnant early on and with so many of those going through a miscarriage in the first 12 weeks, the 15 week compromise seemed reasonable.
The article on miscarriages in part states,
Miscarriages, or the loss of a pregnancy before the fetus is developed enough to survive, usually happen during the first trimester of pregnancy, which is the first 12 weeks:
- Early miscarriage: Most miscarriages happen before 10 weeks of gestation.
- Late miscarriage: Miscarriages that happen between 12 and 24 weeks are considered late miscarriages.
Miscarriages are fairly common, affecting about 10–20% of women who learn they are pregnant. However, the actual rate is likely higher because many miscarriages happen before a woman knows she is pregnant.