Increased blood volume during pregnancy can cause edema in the back of the feet.
If the swollen dorsum of the foot is relieved with rest, treatment may not be necessary.
If the symptoms of swollen feet are not relieved after rest, it is recommended that you go to the hospital to have your blood pressure checked and routine blood and urine tests done to clarify the diagnosis.
Take care to eat a light diet and sleep on your left side at night.
When resting, elevate the lower limbs.
Wear looser clothing, which will improve.