They all seem to be fine, no fighting that I have seen (no bite marks or anything either). I looked over the ASF forums and someone said the same thing about just beeing new to motherhood and that it happens to the first litter occasionally. As for being big enough, the breeder I got them from said they were big/old enough to breed so who knows. I'll monitor them and see. I think the other 2 females are about ready to pop as well so only time will tell. Thanks again Joanna!