She is clearly a disgrace in every way, and particularly to the teaching profession, and I hope she gets a harsh sentence (but won't hold my breath)
Whilst I agree that boy A was a victim, I don't really see boy B in that light, what she did with him was of course technically illegal due to her position of trust, and is no less deserving of punishment.
But in reality this was a 16 year old lad getting nookie (over 30 times!), he only had a wobble when the "oh shit" moment came that he had made a woman pregnant - a fool for sure, but victim?
Regardless it was illegal, as certainly was A, so chuck the book at her by all means, feel very sorry for the baby though.