I have caught largemouth bass in March,April,May and June that were full of eggs.On one rare ocassion I caught a female in early July that had a bloddy tail and eggs were squirting out of her. As mentioned before the conditions may have not been right and they were late spawners. It has also been proven that a small precentage a the productive females that spawn early will spawn a second time if the conditions are right. When most people think of the largemouth bass spawn they associate it with late April or early May and that is correct in most cases but there is circumnstances that will cause a late spawn.