Praise be to Allah.
We put this question to Shaykh Muhammad ibn Saalih al-‘Uthaymeen, may Allaah preserve him, who answered as follows:
Yes, they are included, but they are not like children who have been born and to whom one has developed an attachment.
Question: but will a person get the same reward?
Answer: yes, we hope so.
And Allaah knows best.