We decided to take a month off of ttc cycle 6. We did baby dance during my fertile window but used the pull out method. Obviously there is a chance I could be pregnant. I tested 2 days before period was due since i have been having slight symptoms and got bfn. Now I'm 6 days late with no signs of a period. I had the stomach flu a week or so ago so that could cause the delay but I've never been delayed due to illness. I could of ovulated later in the cycle but we did not bd. Has this ever happened to anyone? What do you think the chances are ?