Help with a down payment for a home.

I am approved credit wise to buy a home. I would like to do this before my lease is up in September. We are a family of 7 and home ownership would give us some financial freedom since it would be much less to purchase a home than rent one the size we need. I am not going to give you a big sob story. I just don't make enough to save the amount I need by the time my lease expires. I don't have family to ask, so, I figured I'd just give this a shot. Thank you for reading!!