Measuring 22cm at 23 weeks

Any one else measure a little behind in fundal height? It only a cm behind but I’ve never had any issues with my previous pregnancies as far as fundal height. I’m 5 9 so I have a long torso and tend to carry my babies low. Also this baby is a girl and compared to my weight gain with my 2 boys ive gain far less, but am still on target there. I gained A LOT with my boys lol maybe I’m just being paranoid, my midwife didnt seem concerned. I feel her moving regularly as well