It is perfectly normal unless you feel discomfort or pain while you pee or after, or any pain in your back or bladder. In that case you could have an urinary tract infection, it is common in pregnant women.
This is perfectly normal although annoying. Your womb goes from the size if a pear to the size of a water melon in the first 12 weeks. Your whole body is about to go through a lot so don't worry xx