my twins are diffenent size since pregnent, they have 3 weeks difference since 18w+, private dr request me to public dr due to this is not a normal case.
after all the fears, they born at week 33.6, 5 lb/ less than 2lb.
my case are very extremely, so dont worry too much, just follow the dr instruction. we couldnt change anything.
now they are going to school, everything ok, only the size still have a big differnece.