In a pregnancy with a history of losses, your doctor may prescribe Enclex (a low-molecular-weight heparin) to reduce the risk of blood clots affecting the placenta, which can improve pregnancy outcomes in selected cases, such as clotting disorders or recurrent miscarriage. It is generally considered safe in pregnancy when used under medical supervision and does not harm the baby, but it should only be continued if there is a clear indication based on your wife's history or test results. Since your doctor knows her full history, it is usually advisable to follow their recommendation, while also asking for clarification about the reason for starting it and the expected duration. Regular follow-up is important to monitor for side effects like bruising or bleeding, and to ensure the dose is appropriate, which can help provide reassurance and a safer pregnancy journey.