i dont know there is to many i guess if your pregnant your not going to get cramping but thats not always true. hard to say what the difference is
they do tend to me similar which is why you must take a test to truly know if your pregnant.
Not much difference at all. That's why it's so easy for people to think they are pregnant when they are hyper-analyzing the things their body was probably doing before they were ttc, but they never paid any mind to.