Listen. Dr. James Naismith was a Canadian physical education instructor who invented the game of basketball in 1891 while working at the YMCA Training School in Springfield, Massachusetts.isten. Dr. James Naismith was a Canadian physical education instructor who invented the game of basketball in 1891 while working at the YMCA Training School in Springfield, Massachusetts.
Rarely, it can cause an infection of the lining of the heart, abnormal heart rhythms, or, for severe mitral valve prolapse, congestive heart failure during pregnancy -- but these complications can be safety treated with medication during pregnancy.
BEST ANSWER. My doctor does believe that there can be a link between low progesterone and miscarriage. She does not believe, however, that every pregnant woman with low progesterone levels will miscarry. I was concerned about it with my first pregnancy, and my doctor had me get progesterone shots twice a week for a few weeks during my first trimester. After that time, my body started producing more progesterone on its own, and the rest of the pregnancy was very healthy. I have a healthy, beautiful son who is nearly 1 year old.