While you're at it, schedule a dentist appointment, too. Hormonal shifts make pregnant women more susceptible to tooth decay, bleeding gums, and periodontal disease, so it's important to keep your oral health on track.
Also avoid environmental contaminants and toxic substances, such as synthetic chemicals, metals, fertilizer, bug spray, and cat or rodent feces. According to the CDC, exposure to even small amounts of these substances during pregnancy can be harmful, and can hurt the reproductive systems of men and women and make it more difficult to get pregnant.
The CDC also recommends reducing your fish and seafood consumption, since these foods contain mercury and can cause birth defects when eaten in large amounts. Follow their recommendations by eating no more than 12 ounces of fish per week, avoiding ocean fish like shark and tilefish, and limiting your tuna intake to one can or steak per week.
Although there is no need to wait a set amount of time before trying to get pregnant, it's important to know that while fertility returns for most women within a few days, it might take a month (or longer) for you to start ovulating again, and if you are on Depo-Provera, it can take up to a year from your last shot. Some healthcare professionals recommend waiting until your periods become regular before trying to conceive, but this is only to make it easier to determine your due date and not for any health reasons.