First time TTC and so confused! 3/7 late on my 35day cycle. No sign of period and negative pregnancy tests. Had no PMT symptoms like normally, had some pinching/stretching pains in my stomach, sense of smell is through the roof, crazy vivid dreams and feeling nauseous when I wake up and go to bed. Had a light pink spotting on wiping yesterday am but nothing since which is not like my regular period. Was this implantation bleed? Why still negative tests? What's going on....