Nutrition is a critical consideration, especially if you have an underlying problem like diabetes. Go over the food pyramid, and eat in accord with it. You can normalize any blood sugar problems as well as give yourself more energy throughout the day by having six small meals a day, instead of three larger ones, and try to eat a little protein and a complex carbohydrate for breakfast every morning (an egg and slice of whole-wheat toast is ideal.)

Start taking a prenatal vitamin too, to ensure you get that folic acid in as well. There is evidence that certain foods also have an impact - whole milk, for instance, may help you get pregnant - but nothing certain yet so don't just jump on the bandwagon.

Weight, doctors are learning, is a critical consideration. You need a BMI of at least 22 to have a normal chance of conceiving. Being just a little overweight is okay. However, if you creep up into the obese category, with a BMI of 30 or above, your fertility will begin to drop significantly. That means having that cheese on your sandwich is probably a good thing, but eating two sandwiches - maybe not so much.

Time your menstrual cycle. For most women, fourteen days after the first day of her period is the day of ovulation. Talk to your doctors about how to measure basal temperatures, mucus, and all the other fertile signs, but you can probably expect it to be right around the fourteenth day, plus or minus a couple of days.