What to tell my children about my abortion?
As my baby was not viable, I had to interrupt my pregnancy. I explained to my two children (8 years old and 3 years old) that he was sick. But I can not tell them he was not normal. Hadrian
Explaining a medical termination of pregnancy to children is difficult. This involves re-explaining the baby's conception and slow development in the womb. By stating that, in some cases, the baby may have a disease or a malformation that would not allow him to live normally. I do not see what else can be explained about "abnormality".
Your impression of not having said everything therefore probably refers to all the questions and guilts that the idea of an "abnormal" baby can arouse in a mother's head. That is, things that you may find difficult to formulate for yourself. But that do not concern your children.
And it seems normal to me that your 3-year-old son does not understand that the baby is no longer there when your belly is still "fat". Because he was told he was fat ... because there was a baby inside. His incomprehension proves his intelligence. It is therefore useless to add a worry to your grief already so heavy.