It's important for pregnant women to take care of themselves.
Now, a new study suggests that's especially true when it comes to one fairly common health issues.
A team of UC Davis researchers have found that mothers who had fevers during their pregnancies were more than twice as likely to have a child with autism, or a developmental delay than mothers who controlled their temperatures with medication.
Or those who didn't have a fever at all.
To reach their conclusion, the scientists studied an ethnically-diverse population of more than 11-hundred Californian children ages two to five.
The study, published in the Journal of Autism and Developmental disorders, is believed to be the first of its kind.