I had a regular period about a week and a half ago . And now I'm cramping and when I wipe there is pinkish or brownish discharge on the toilet paper I also have lower back pain and some lower abdominal pain as well .. I did have intercourse twice during my period with my husband so I'm not sure what's going on. I went to the Dr. And she SD I had a uti but I don't have frequency to urinate or pain when I urinate I'm confused... help