There are a handful of case reports of miscarriages that occurred after exposure to carbon monoxide, but it is not possible to analyse the chance of miscarriage occurring after carbon monoxide exposure from this type of data, or to say for certain that carbon monoxide exposure caused the miscarriages.

Can toxic fumes cause miscarriage?

Chemical exposure If you must use chemical cleaners, wear gloves, ventilate the area, and avoid inhaling fumes. Exposure to lead can cause miscarriage, and experts report that children of mothers exposed to lead during pregnancy may have delayed development.

How does carbon monoxide produce a smaller baby?

When you smoke (or if you breathe in other people’s smoke) the carbon monoxide, and other damaging chemicals, restricts the oxygen your baby gets. This affects your baby’s growth and development and causes your baby’s heart to beat harder every time you smoke.