How does gestational diabetes affect the reproductive system?

Doesn't. It basically increases risk [adverse outcomes] to mom, fetus, newborn if not treated aggressively.
Not much. Gestational diabetes is diagnosed after women are already pregnant, so it doesn't affect their ability to have children. If it's not controlled, in severe cases it can increase the risk of the baby dying (stillbirth), so in that way could have an impact on a happy outcome. Women with uncontrolled type 2 diabetes are certainly at risk for fetal loss.

Related Questions

How does gestational diabetes affect the baby negatively?

In many ways. The excess Insulin and glucose can make your baby grow larger than other babies. Read more...
Depends on control. The average blood sugar during pregnancy will affect the growth of the baby, potential for overgrowth of organs & general size& the risk of birth defects. A fetus makes their own Insulin & excess sugar is put into overgrowth of tissues, including the heart.Good control in pregnancy stops the problem. When mom's sugar stoops coming (cord clamped) babies Insulin production causes a low sugar problem. Read more...

Does gestational diabetes last throughout your life?

Yes and no. Gestational diabetes resolves after the pregnancy, but many women that develop gestational diabetes end up havingng type2 diabetes later on in life. Read more...
Yes and No. Gestational diabetes itself usually resolves in the postpartum period. However, women who have gestational diabetes have an increase risk of developing type 2 diabetes during their lifetime. Up to 19% of women with gestational diabetes may develop diabetes in the first 10 years after delivery. Staying active, eating a healthy diet, and maintaining an normal weight can help prevent diabetes. Read more...