Pee going up side of hip

Ti

6 week old girl. Size 1 diaper Huggies AnD Pampers both having this issue. Diaper isn't full of urine. I am making sure diaper around legs is connecting when sticking tabs to front. Diaper is also as tight as can be with both tabs almost touching in the front. I've tried loosening it as well. I CANNOT for the life of.me figure out what is wrong. But i didnt have these issues with newborn size. She grew too big for newborn and we had to move up the next size. Wtf am I doing wrong lol.