Hi, I a 21, 5ft7 and 150lbs. The first day of my last period was 8th January. I had unprotected sex 10 days later and then started taking the combined pill the day after that. For the past couple of weeks I have had various symptoms including fatigue, faint nausea, mood swings and a strange-feeling watery mouth. Could this be pregnancy or are the symptoms more likely to be side effects of the pill? Thanks.