Hi there, Have you done test to rule out APLA Syndrome and thrombophilias. They include ACLA, Lupus antibodies, Anti beta 2 Glycoprotein, Protein S, Protein C, Prothrombin, Fibrinogen, Activated Protein C resistance. These are important as if a women has APLA syndrome she has a 90% chance of miscarriage. And if diagnosed and she has taken Heparin the likely of pregnancy continuation increases drastically. More so a diagnoses of APLA and thrombophillia also has repercussion on the women s own health with increased risks of blood clots in legs or lung. Please do them, before going for the next pregnancy. Hope this helps. Regards.