You will be taking human insulin . There are different types of insulin. Some work fast, and some are slow. You may take one kind or both. It starts to work in about 30-60 minutes and lasts for about four hours.
Regular insulin is clear or see-through.
It starts working in about four hours and lasts 12-24 hours. NPH insulin is milky or cloudy looking. Your doctor will tell you if you should take just one or if you should mix them together. You would take it instead of mixing NPH and Regular insulin together. As you get further along in your pregnancy, you will need more insulin.