S.K.
All phases of the menstrual cycle can vary from woman to woman, and even month to month. But based on the length of your cycle it is possible your "happy days" are being celebrated too early. I would definitely try the ovulation predictor tests this month if you have not been doing that already. From what I have heard the book "Taking Charge of Your Fertility" by Toni Weschler is a wealth of valuable information and has helped many women understand their cycles better, thereby increasing chances of conceiving. It is pretty cheap on amazon, or maybe you can get it at your local library. Also, it would be worth asking your doctor for timing recommendations. But since everyone is different, his/her advice is just a small piece of the puzzle. It is really best to be able to recognize your own body's signs of ovulation. I wish you the best of luck.