Still birth

My sister in law had a still born at 30 weeks .. She is inconsolable, I don't know what to say, how to console her.

Myself who had a miscarriage at early pregnancy know the exact feelings with comment like you can get pregnant again- but I want this baby only

The baby would have got birth defects later- but why only my baby.

I am just not in my mind, I didn't cry in front of her but couldn't stop myself after leaving the hospital ..

Please advice how do I help her to come out of this