What would cause blurry vision with spots and stars when pregnant?

Preeclampsia! A severe pregnancy complication called preeclampsia can cause these symptoms - seek emergency expert care as soon as possible! best of luck.
Usual causes+toxemia. Pregnant women can experience most of the conditions that affect vision of people who are not pregnant. In addition, pregnancy conditions like preeclampsia can be associated with blurred vision and seeing "stars". Most OB providers want to be told about such symptoms and evaluate immediately. A physician can perform the exams needed to determine a cause and possible treatment plus OB management.