How fathers can help stop pregnancy losses Wednesday January 13 2021 Summary General advice on preventing miscarriages often focus on lifestyle changes targeting women such as eating healthy, exercising, avoiding smoking, not drinking alcohol, controlling stress and having a healthy weight. Aside from the women, health experts note that men too can play a significant role in reducing the risk of pregnancy failures among their spouses. A new study published in the Human Reproductive Journal indicates that over 25 percent of pregnancies might be ectopic or end in miscarriage or stillbirth if the father-to-be is unhealthy and has obesity, diabetes, high blood pressure or high cholesterol levels.