If you have a dog or a cat, you may also be at risk from toxoplasmosis - a disease caused by parasites that live in certain mammals. You can become infected by coming in contact with cat faeces, either in a litter box or in the soil, as well as by eating some raw meats. Get someone else to change litter boxes for you, or wear gloves when you do it. Infection during pregnancy may cause premature birth or low birth weight.

Medical Problems.

Some women have medical problems that will require medical attention before and during a pregnancy as they may increase the risk of problems during pregnancy. The most common disease requiring attention is diabetes. This condition can lead to problems conceiving, with miscarriage, abnormality and problems at the time of delivery. If you have a medical problem it is important that you meet with your doctor before you start trying to get pregnant. Preconception planning can also help eliminate the risk of exposing your fetus to potentially dangerous drugs you may be taking to treat a condition. This may include non prescription, over-the-counter medication. Discuss these with your doctor. He or she can help put together a list of medicines to avoid and advise you on using your medication safely.