POTTY TRAINING HELP!

Manni

My 2 yearold is a chunky dude and he is in size 6 diapers and they honestly do NOT Fit anymore. the tabs are literally holding on for dear life and i dont think diapers go in a size bigger than a 6. i would like to potty train him so i can stop having to change 3 kids dirty diapers since i just had my twins and bending and trying to lift my 2 yearold who has to be close to 30lbs or maybe 35 is just to painful on my c-section incision.

how do u BTDT moms suggest i approach this situation?