Hi, Your wife having a late fetal loss and deep vein thrombosis point that she could be having a condition called Thrombophillia. She needs to be checked for the same through blood tests. This can cause her to have complications in pregnancy and can affect her and the baby as well. She will need thorough evaluation by a hematologist. She will have to shift from Warfarin to heparin injections to prevent clots and to prevent pregnancy loss once she gets pregnant. She will have to continue Heparin even after delivery. But after DVT, she should wait till her condition stabilizes before she plans a pregnancy also she needs to get a proper evaluation of Thrombophilia. Hope this helps. Regards.