Am I entitled to get half of my husband's business in a divorce settlement?

It is POSSIBLE that you may have a claim to the business, if you can show that you worked in or for it, or that you in some way made  it possible for your soon to be ex-husband to start the business (e.g. you supported him while he started it). It's definitely something worth discusssing with your divorce attorney and bringing up during settlement negoations or in court. (Complex divorces--and ones where they might be a business to value and split would qualify as complex--should ALWAYS be done with an attorney.)

If your lawyer feels you can recover some interest in or share of the business, you should probably engage some sort of accountant or business consultant to help you value it--speaking as someone who has a small and completely non-liquid business, I can tell that fixing a value for them is very difficult. Good lucik.