Home problems.

Okay ladies I need your help. I'm pregnant & being induced on the 14th of March. I'm 16 & my husband is 17 we got married in January! We had dated for previous years before. My husband is a senior this year & I am as well because I home school & have finished all my other grades so far. There are 6 people living at my house. My mom & step dad, my grandmother, my younger brother, my husband and myself, plus a baby on the way which will make 7. My grandmother is very rude & selfish. Everyone pays all her bills. My husband's family is very well off. My husband isn't able to make a lot of money right now because his dad is making him play baseball because it's his senior year. My grandmother grips & complains over everything. She says she can't ever do anything for having to wait on 6 people. (When she doesnt) Also she says she can't ever do anything when she has to cook all day for 6 people. When it doesn't take someone all day to cook a meal. (It takes about an hour) She stays on the phone and talks about us to my aunt lynn all day. May I add my husband and I don't even have a house key. We have to let her know when where leaving, going to be home, & when where going to be back. My husband's parents have offered for us to live with them, but my husband's step brother passed away in a car accident a few months ago. He was hit by a garbage truck & passed on his 18th birthday in icu. I just don't want to be a burden on my husband's Dad & step mom. But my nerves can't take the stress of living at my home. When comments are made about my husband all the time, like I'm supposed to sit back and just listen to it. I love my family but enough is enough. May I add my husband goes to school 5 days a week, he goes to collage for welding every day but Friday, plays baseball & works each chance he gets. The last time I've been alone with him was on our honeymoon. We have no privacy at all living at my house because my grandmother is there 24/7 & we don't have a house key. I know things would be different living at his dad's but I'm not sure if that's what he wants to do. I know he hates it just as much as I do. I'm just not sure if he thinks I'd be uncomfortable there or not. Which his family always treats me just like they treat him. I love his family just as much as my own. There my family too, I just don't know which way to go. Either live at my house until the end of May & live in hell and listen to my grandmother complain constantly or move in his dad's until May when he can work full time & then I'll get a part time job after he graduates. We have 1300 dollars put up already for a down payment on a house when he gets to where he's able to work full time so we can pay the bills. I'm also closer to his family rather than my own besides my mom. My mother is super excited about the arrival of our little girl & I don't want her to feel like I'm keeping Bella from her if that's what happens, because I'd never do that. I also feel like if I wasn't there it'd bring me & my mom closer because we'd actually try to do things together. And spend some time together rather than her working from 9 in the morning to 9 every night. I just need your ladies advice on what direction to go. Thank you to all those who comment in advance!