Leaking urine? Not knowing it??

So I went to the bathroom and this strong sensible nose picked up the smell of urine. It was coming from my undies and I was like ew I dont normally smell what’s wrong with me. So I was thinking maybe I have an infection from the pregnancy and so I checked my discharge but it was completely odorless so it had to have been leaked Urine. Only think is I didn’t feel like I peed a little? Would that just happen and you not know it? I’m only 8w but I have noticed the pressure on my uterus has grown more intense the last two days ?