SGA/Marginal cord insertion

Sa

I’m 25 weeks with mo/di boys. Baby a is AGA and baby b is SGA. Baby b also has marginal cord insertion, which could explain his SGA. Doctors say they’re on the look out for abnormal umbilical artery Doppler.

I know there is nothing to be concerned about just yet... I’m just worried for the future. Any moms been/going through the same thing and have any advice?