There are some life insurance companies that will issue a medically underwritten policy to a woman who is pregnant, normally in the first or second trimester. This is true even if gestational diabetes is present, as long as the health of the mother is well controlled during pregnancy.
After that you may need to apply for a simplified issue policy that does not need an exam, or wait until after delivery.
My experience has been that it is possible to get life insurance during the first trimester, but that insurance agencies are reluctant to take an application for a woman in her second and third trimesters of pregnancy, in case of complications. But I am sure there are some companies that will cover women who are up to 6 months pregnant with a medically underwritten policy, especially if they have had previous event free pregnancies and have no pre-existing conditions.
For those who are in the third trimester of pregnancy, there are No Exam policies you can get.
After that you may need to apply for a simplified issue policy that does not need an exam, or wait until after delivery.
For those who are in the third trimester of pregnancy, there are No Exam policies you can get.