I took a clear blue digital on Sept 8th (period due) result pregnant. I went to have blood work done on Sept 8th and got a negative for pregnancy. I took another pregnancy test (different brand) yesterday Sept 10th got 2 lines so pregnant. Today I have only when I wipe after going pee I get a little light pink/brown on the toilet paper. Nothing on a liner. This would be my 3rd pregnancy and I haven't had this happen before. Any suggestion on what to do/what is going on?