If you have been vigilant about taking your pills properly, it is unlikely you are pregnant. However, there is still a chance so off to the chemist and get a test. Its best to know sooner rather than later so you can consider your options. If Im more than 3-4 days late I always take a test because my pill (Dianette) can have a very harmful effect on a fetus. I hate to think what I have spent on pregnancy tests over the years but I would rather be safe. Hope it turns out ok for you.