just want to say, you dont need a stern talking to, you need some gentle, loving care

Yes, your family is in pain. You're in pain too. It's a different pain to your sister, but it's still there. I imagibe you're devastated for her. I imagine that may bring up fears for your own pregnancy. It may be similar to survivor guilt.

Go easy on yourself. These are important issues to you. It wont hurt to see a psychologist. The body clearing work sounds great. I get kinesiology and reiki myself. One thing to talk about may be some kind of pschic protection for you and your baby from the hostility in your family. You can do it yourself - do some meditation and surround yourself with a bubble of peace, like a shield of white light all around you. Only positive messages can get in. Negative messages bounce off. You can also do a separate one for baby. It helps if you're having a freak out, which happens. If you need to express your anxiety, just surround bub in a bubble peace. It helps, even a little bit. I learnt that off hypnobabies, btw. I highly recommend it.

As for the rest, try to let it go. The serenity prayer or similar can help with that. A trick to letting things go that you cant control is write a letter to whomever or the universe. Sit with it a while, then go outside and burn it, visualising letting it go as the smoke and ashes fly away. You may need to do that multiple times throughout your pregnancy.