Many women start to feel this symptom within a week or two after pregnancy has occurred.
Sorry to have to say this, but this symptom of pregnancy may remain constant for nine months.
Pregnancy causes the uterus to swell and it will start to enlarge for the growing fetus immediately. The swelling uterus puts pressure on your bladder making you feel the need for more frequent urination.
Also, pregnancy causes extra body fluids to be processed by your kidneys and bladder.
That means more trips to the restroom.