Hello out there. I'm new so bare with me. My menstural period is brown. I have research it already but there are only explainations for light blood. Mine is fairly heavy and darkish brown. I am not late, actually I'm right on schedule. But usually my cramps only are serve on my first day and this is my third day, they're still as bad as the first. On another note: I am sexually active, about 4 1/2 weeks ago I didn't use a condom ( I know that's really bad! ) I didn't really worry about being pregnant so I just went on with my life. Oh yeah and I also have no STDs. Well there's my question. What should I do?

Brown blood is quite common; its known as "old blood" that is being flushed away.

I suggest calling your doctor since there are many potential reasons you're experiencing this.