OMG. I don't even know what to say. I am
SO SORRY.
I seriously hope no one here says anything rude to you about this - or tries to LECTURE you about the puppies age or anything - that would really be just WRONG

You made a mistake - an accident - and accidents happen EVERY DAY.
I can just tell by reading your post how awful you feel...and I certainly hope people here can respect that and leave the negative and lecturing comments OUT. They aren't needed here.
God Bless you and your little pup

This was just such an awful thing that happened and I truly am so very sorry