You must be one of those women who's tummies will pop out overnight! I'll bet by next month you will have a little basketball!i keep freaking myself out thinking i should be bigger by now and worrying that something is wrong.
Personally, I think they are interchangeable...but that's just my opinion. Kinda like the way sausage gravy is also referred to as sawmill gravy. Here's what Wiki has to say: Chicken Fried Steak