Im sorrylittle one
I am sorry about the little one.
I'm regretful about the little one. I understand how challenging such a situation can be. Please, accept my sincere regrets.
I feel regretful for your child. I know what difficult such a situation can feel. I urge you, take my genuine condolences. I genuinely am saddened for the inconvenience caused. I feel hoping that the little one will excuse me.