I'm 27 years old & TTC for the past two years. My last period was on Oct-2 and I was on Clomid for CD 5-9. We had regular intercourse. My period is 13 day late( it was due on Nov 3). And until yesterday I did not have any period symptoms. Got brownish discharge when I wipe after peeing. Today it changed to red but nothing on pad only while I urinate. Took a pregnancy test today but came out negative. What is happening to my cycle, is this my period or implantaion. Should I check with a doctor ?