Hello, Consecutive 2 negative pregnancy tests are mostly suggesting that you are not pregnant. But you need to confirm it by doing one blood test for beta-HCG. Other reasons for delayed period are hormonal imbalance (most common in this context), stress/ anxiety/ mental upset, irregular diet pattern, wt change, thyroid disorder and ovarian cyst. Sore breast and light cramps are indicator of getting period shortly. Consult with your gynecologist for relevant examination & investigation like USG pelvis and complete hormone profile etc Avoid stress by regular deep breathing, take healthy diet with iron supplements, keep bowel regular, control body wt by regular exercise/yoga and take proper sleep. Be well & take care.