Toxoplasmosis is caused by the parasite Toxoplasma gondii. Cats are the definitive host — they are the only animals that shed the infectious oocysts in their feces. However, most cats only shed these oocysts for a brief period (1-3 weeks) after their initial infection, and oocysts take 1-5 days after being shed to become infectious.
This means the actual window of risk is narrow. And for indoor cats eating commercial food, the chance of ever being infected in the first place is low. The fear surrounding cats and pregnancy is disproportionate to the actual risk — especially when you take simple precautions.
What is more concerning, and less discussed, is that raw or undercooked meat is a more common source of toxoplasmosis infection than cats. Handling raw meat and not washing your hands, or eating undercooked lamb, pork, or venison, carries a real risk. See our foods to avoid during pregnancy guide for complete food safety information.