I don't think it runs in families, but I do think that some women can tend to follow the same pattern as their mothers, though not always! My mum and my sisters all BF successfully, so you would think that therefore I would be able to do it with no probs too, but that was not the case with my babies. Everybody is different, as is each baby so definitely I think if you want to BF your next baby then go for it and try not to think too much about your past issues, just focus on your new bub and see how you go!