Sidelines is a network of support groups across the country for women and their families experiencing complicated pregnancies. A pregnancy is termed "high risk" or "complicated" when the life or health of the mother or baby may be at risk. It is estimated that approximately 1 out of every 4 women will experience pregnancy complications this year, sometimes leading to the birth of a premature baby. When babies are born preterm, they have a higher risk for serious health problems.