1. 
   Natural Abortion
   A spontaneous abortion, or miscarriage, occurs when a pregnancy is lost in the first 20 weeks. Out of all pregnancies, approximately 15 to 20% end this way. Most miscarriages happen in the first 12 weeks. There are various causes for a miscarriage to occur. Sometimes, a fertilized egg can not develo...
   Found op http://www.pregnology.com/AZ/N/1
   
   

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