Your doctor can tell you about them and have you tested, if appropriate. Until your doctor says otherwise, presume you are susceptible to the disease and take every precaution to avoid infection during your pregnancy. Unless your doctor tells you that you are not at risk, assume that you are, and do all you can to avoid infection throughout your pregnancy. Here are several ways you can keep from getting toxoplasmosis. Don't eat any meat unless it's cooked well-done.
Thorough cooking kills the parasite.
Keep your hands away from your mouth and eyes when handling uncooked meats and raw fruits and vegetables. And wash your hands as soon as you're finished. Ask someone else to handle the cat litter for nine months. If you must do it yourself, wear disposable gloves and wash your hands afterward. Make sure the litter is changed daily and the pan is soaked in water that has just been brought to a boil.