Hmmmm - I get this now, but then I definitly have a babies head that sometimes pops right on my bladder. Last pregnancy I remember having to wee, then stand up and sit again to wee a little more!! It seemed to move babies head.
You are pretty early to have baby parts pushing really hard on your bladder, but its possible I spose. Would be worth mentioning it next appt, or if you get any other symptoms of UTI I'd be in there asap.

Fi