Assuming you're talking about SSDI (Social Security Disability Insurance), you need to have a certain number of work quarters (30 I think?) over the past 5 years. You also need to have been paying the FICA tax. You can look on your pay stub to see if you have been paying that.
If not, you may be eligible for SSI (Supplemental Security Income). For this one, your income and assets have to be below a certain amount (such as $1500 per month for individuals). If you have a husband who works and makes over this amount, you won't be eligible based on having too much income. If you have too many assets such as an IRA, you can spend down your assets to become eligible. You are allowed to keep one house, one car and a grave plot.
When you apply for Social Security Disability, they will see if you are eligible for both SSDI and SSI.