I am on day 70 now. I am 6 weeks late, and have taken 6 tests at home, all negative. I went to the doctor and had urine test last week, negative. She ran blood work and it came back normal. She told me to call on Feb 1 (in 2 days) if I haven't started, and that we can run more tests. Any body have any clues or advice as to what could be going on? I am NEVER late, and am very concerned with what could be wrong.