I have a completely regular 28 day cycle. Yesterday was day 29. I went to use the bathroom, and when I wiped, had very faint pink on the toilet paper in the morning. I thought I was about to start my period but nothing happened the rest of the day. This morning when I used the bathroom, it was bright red when I wiped, thought it was my period again, but nothing else again! I'm wondering if this is normal and my cycle may just be changing?