An infection during pregnancy is different from when you are not
pregnant - it can affect the pregnant woman as well as the developing
fetus inside the uterus. Some infections have worse outcomes during pregnancy, while others cause problems for the baby and not the mother.
An infection, whether it's sexually transmitted or otherwise, occurs when certain pathological organsims like bacteria or viruses invade and multiply inside the body. This invasion can produce tissue injury and lead to overt diseases through different processes.
During pregnancy an infection can be different from when you are not pregnant:
You can decrease the risk of infection during pregnancy by washing your hands frequently, not eating raw or undercooked meats, not sharing food or drinks with other people, not eating unpasteurized milk products, not emptying cat litter, and not being exposed to other persons who are infected either through intercourse or other exposures.