If you are pregnant, you are probably not worried about how many calories in a banana or any other food. You eat what you are craving, hoping you are craving it because it is what your body and the baby growing inside need. Your body temperature has increased and you most likely feel warm all the time. Sometimes you probably feel quite hot. Bananas can lower you temperature, keeping your body comfortable. They will also keep your mood swings in check. It does come in handy that bananas are very nutritious. When you consider the vitamins, minerals and amino acids in bananas you will not be worried about how many calories in a banana whether you are pregnant or not. Another added advantage for pregnant women and bananas is they will not upset your stomach. They can be eaten in the morning to calm morning sickness. They are a great fruit to have around at any time.