26w 2d with BIG twin boys

This app says they should be about 1.5 lbs... I just left my ultrasound and Michael is 2.4 lbs and Jacob is 2.9 lbs 😲.  (Which for this app would put them at 29 and 30 weeks)  I have 2 big healthy boys growing in me and man can I feel how big they are lol.   I'm only 5' 1.5" so I'm pretty small - and I can feel everything