Im stressed out. I have regular periods. My last period was on 01-02-10. My period is late. Its Feb o4 already. I know i had sex on my ovulating days. But he pulled out. I have no discharge. No spotting. I have swollen tender breast, constipation, weird cravings and other stuff. Can my mind be playing tricks on me? i dont want to test early. I wasnt trying to conceive. I have leg cramping and lower back pain. What should i do ?