It is not unusual to develop a viral illness that causes a fever during pregnancy or after your delivery. Mild fevers that last only a short time usually are not a concern.
An ongoing fever that does not get better with home treatment, such as taking acetaminophen, or that does not improve after several days may mean that you have a more serious problem, such as a bacterial infection. Talk to your doctor if:
A fever develops and you have other health risks, such as diabetes or other chronic conditions.