Hi, Thanks for the query. As you had previous intrauterine death, aspirin and lonopin might have kept as preventive measures in this pregnancy. Lonopin is a low molecular heparin. It helps in preventing intrauterine deaths due to coagulation abnormalities. This can be used if benefits overweigh the risks. Omega 3 fatty acids are essential during pregnancy. They help in neurological development of the baby. Some women may not take diet sufficient to give required amount of omega 3 fatty acids. In that case supplementation is beneficial. So, you can use these medicines with your doctor s advice and under her supervision. Take care.