So I am 32 years old and I had my tubes tied in 2004. SInce then my cylce is every 25 days 5-6 days long. I was told late 2011 one of my tubes may have come undone, but I was deployed 2012 and haven't had a chance to get it checked out. I had my regular cycle Jan. 27th, this month is was suppose to start on the 21st. It came the night of the 20th and was gone by the afternoon of the 22nd. I'm a little queasy, moody and my breast are a little tender. I have had very mild lower abdominal cramps yesterday and today. According to my charts, implantation would have been the 19th. Could I be pregnant?