So last month, i was in California and i started my period on the First of Aug, which was a week ealier then i was suppose to start,((8-6) i came back and i was off. then after me and my husband have been trying to concive. (8-28) i started my period with bad cramps. It only lasted for two days but it was heavy and i could tell it was a period becuase after two days it started to turn brown & was very light for a few days. Whys is this?