I started my period 4/24. Have had intercourse with husband a few times in the last month. We currently do not use any method of birth control. Two weeks ago, I was spotting very lightly off and on for about a week. I have had increased fatigue, headaches, nausea with some vomiting, and abdominal cramping. This morning I had an excessive amount of clear vaginal discharge. I am due to start my period this next week. Is it possible that I am pregnant?