I don't think caffeine is a factor.
If your dog is crying a lot there is probably something wrong with it and you should take it to your veterinarian to have it checked over.
only if hard eye rubbing accompanies the crying.
cause he feels like it
cause it hurt.
No, all the normal body functions are not dangerous when you are pregnant or cause a miscarriage. If the reason you are crying is severe shock or something then maybe.
Cause of your mom
To cry a lot or to cry with lots of emotion.
2023-2028 ....... oh, and why is this in miscarriges? >.<
Technically yes, two daughters, but both were miscarriges so it depends on how you look at it.
"Crying with a loaf of bread under your arm" means that you are feeling sorry for yourself when you have a lot to be thankful for.
Any type of stress, including crying, can have a very negative effect on an unborn fetus. Worse case can cause miscarriage.