I'm 33 weeks and having the same problem. Lol its the pressure of our babies pushing on our bladders. I'm up 3-4 times during the night now to make a bathroom trip.
That's gonna happen lol I go pee like every 5 mins no joke lmao
Its 100% normal doesn't matter boy or girl lol its just all the pressure pushing down and your running out of room. You will fins yourself going more and more the further along you get.