Hi, Welcome to HealthcareMagic Forum.
You have not mentioned since how long are you experiencing this, which week of gestation are you in or what other symptoms you have other than fever? It is not normal. May be you have a Infection. If you have fever with chills
associated with, Burning sensation while passing urine, it may be UTI, which is common during Pregnancy
. Kindly get yourself examined by a Gynecologist to rule out the exact cause.
Wish you Good Health.