Hi there.. oct 2 I started period. Lasted about 4 days. I had intercourse on the 9th and then started discharging brown mucus on the 13-15th. I've been dizzy since all last week and thought I was just tired.. I have headaches and back pain plus cramping and heartburn.. I'm constantly tired in the afternoon. And I'm 2 weeks away from my next supposed period.. I haven't missed one yet but I wanted to know if knew what could possibly be wrong with me?

There is no way we can tell you what is wrong with you. Your doctor would have to tell you that.

If you are concerned about pregnancy, which is a possibility if you are sexually active, then you will need to wait until your next period is due. If it does not come as expected, then wait until it is 2 weeks late and test using first morning urine.