Impossible right???

Soooooo, if I don't have any credit yet, but my husband has a decent score about 626-642 is it going to be hard for us to get a mortgage loan? Should I just stay off if the mortgage because I don't have a score yet or will they still take me into good thought over it? My job doesn't really pay enough to buy anything to make payments on. I only get $200-$300 every paycheck and that usually only covers my gas to and from work, pet food, my phone, and a little in savings. Should I see about getting a couple hundred loan to get like new furniture and pay that off a little at a time??