AF was due last Thursday 3.24 and did not show until Saturday a.m. or so I thought. There was pink on the TP so I thought I started. Since then I have only had VERY light pink/brown on the TP after I go to the bathroom – not even enough for a pad/tampon. My periods are very heavy and regular 28-day cycle and I have never had this before. Any PG ladies experience this before finding out they were PG? I have taken to tests and they are negative??? Could something be wrong?