O.K, I had my period on March 25th & was supposed to start on the 22nd. I normally have PMS symptoms like, sore breasts, some nausea, tired, and increased appetite. Well, I never had any cramps or anything. Now, I started on the 28th and I blead heavy the first day. Yeasterday, (day 2) I am almost quit bleeding. Today, I don't have any blood yet. Another thing, I any only bleeding brown blood, no tissue lining or red blood!. PLEASE HELP ME! I also took a pregnany test and it came out negative. Could I be testing too soon or am I crazy? I had sex on the 9th and from the 17th til the 24th. Could I be pregnant?