Ask Social Security Questions and Get Answers ASAP
If you were married for more than 10 years, you are entitled to benefits based on the greater of your contributions or your ex-husbands income. This is to protect the spouse who might get divorced or become widowed and never worked. However, there is what is called a Windfall Elimination Provision. This reduces your Social Security by other pensions (say the State Retirement or Foreign Retirement). So long as you tell the SSA about your other retirement, you should not have an issue.
Frankly, I am surprised at such a question. Many questions are people who have substantial other pensions, retirement, and earnings and are upset their Social Security is reduced. Social Security was designed to supplement an individual in old age, widowed, or disabled; it was not designed to be a persons only source of retirement.
Accordingly, you are benefiting from the design of our system. You are receiving both Medicare and additional retirement benefits as you are legally entitled to.