Hey Brisvegas, it sounds like you and your DH have been through a lot together, look this is going to sound a bit out there but you and DH could look into Sharky's Healing Centre which is in Brisbane i think,
they use natural herbs to help with infertility by balancing the body out and i do believe they could help to settle down that bloating and pain your getting which sounds pretty awful. You never know you may not need to do IVF, They also work in conjunction with IVF, my DH and I are looking into it as well. Figured it couldn't hurt and it is heaps cheaper than doing a full IVF cylce. Good luck cheers neane