I am sorry little one rI am regretful about the little one.
I'm regretful about you. I know what difficult this situation might seem. I urge you, receive my sincere condolences.
I am apologetic for you. I know how difficult such a situation can be. I urge you, take my heartfelt apologies. I genuinely feel remorseful for the upset brought about. I am hoping that your child will pardon me.