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.
Blame it on the changing hormones of pregnancy. Watch out for mood swings during your first and third trimesters -- but be aware they can occur anytime. And, if you had premenstrual syndrome (PMS) before you got pregnant, be prepared. Your pregnancy may make your PMS-type mood swings more severe. Remind yourself -- and your partner -- that mood swings are a normal part of pregnancy. 2  This will make it easier for both of you to weather them. 3  Ask for support from your partner, family, and friends.