Ok I was reading and they say that shortness of breath can be an early sign of pregnancy. Also that lower back pain and sickness at night can be signs. I have asthma and it hasnt been bad until a few weeks ago. I have been coughing and having headaches for the past two weeks as well. Could I be pregnant? I have been trying to get pregnant for five months now. Im only 20 and just im hoping to get pregnant soon. Thanks