Hi LG..
Good luck in TTC#3... I think that life is about experiences and that if this is what you really want do then you have to go after it... I think you may have to negotiate with DH over conditions that he will let you HB.. Maybe you need to agree not to have the boys there or your sister if that's what he wants.. a little give and take if you are willing.. Can you trade with him... If he is dead set against you having a HB then maybe you have to push him to provide facts to you as to why it is better in hospital... If he is researching to prove you wrong the facts point to proving you right for safety and comfort and that's win win... I hope you can sway him because the more advocates for the safety and naturalness of HB the better off we will be as a nation and species... Good luck LG...