Hi, I will be 43 on Jan. 5, 2014. I have always had a very predictable cycle. Usually right on 28 days. For the past year (Since Jan. 2013), I have been a little off but not much. Some months I will be 2 days late or the next month, I may be 2-3 days early. The latest that I have ever been was in January and I was 4 days late. My period always lasts for 6-7 days. My last period started November 27. I was scheduled to start on December 24. On December 20, my husband and I had unprotected sex. I did not think a lot about it since I was going to start in 4 days, I knew that my chance of getting pregnant was pretty much zero. As of today (December 31), I still have not started. I have taken 2 home pregnancy tests and both showed negative. Today I went for a blood test and it also came back negative. I have been bloated and having cramps in my lower abdomen around my ovaries. Could I be pregnant or is it more likely that I am starting perimenopause?