I have been on the pill for 7 years but recently I missed one pill and switched the time of day I started to take it. My breast have been very tender for about two weeks and I have been very emotional. I am two days late on my period. I woke up this morning sure that I had started. I had the cramps and felt wet but when I went to the bathroom it was just a clear discharge and a lot if it. I took a hpt and it came back neg. could I still be pregnant?