I had my tubes tied in 09. within the las year my periods have been irregular. Last moth I was 10 days late. I spotted a very light pin for 3 days a couple weeks after and now I again I am 9 days late. I am experiencing cravings, tiredness, frequent urination, nausea, and also some sharp pains in my lower abdomen. I haven t taken a test due to the past irregularities . Is this normal?