I was supposed to start my period 2 days ago, and just today I have this thick brown discharge on my pad, and a little bit when I wipe. I have also been having VERY bad cramps today. I took a pregnancy test and it was negative, but my husband and I have been NOT using any form of birth control since September. I am just worried that I may have something wrong with me (infection or something) Please answer if you can help. Thank you