Bladder really full at night

Hi ladies. Im 7 weeks and 3 days and noticing that when I wake up to pee at night now my bladder is super full. However in the past although I was bursting there would be hardly any pee. I was just wondering if anyone else is experiencing this seven weeks in? I know they say in the second trimester u get your bladder back as the uterus/baby lifts up a bit, but should it be happening so soon?