Hi @farahali and welcome to Mayo Clinic Connect. I see you are inquiring about developing type 2 diabetes after having gestational diabetes during pregnancy. According to the CDC, About 50% of women with gestational diabetes go on to develop type 2 diabetes, but there are steps you can take to prevent it. here is the link that you can use to look further into it. https://www.cdc.gov/diabetes/basics/gestational.html#:~:text=About%2050%25%20of%20women%20with,sure%20you're%20on%20track.

It goes on to say that reaching your target weight after pregnancy will help reduce the risk of developing type 2 diabetes afterwards. Have you gain weight during this third pregnancy? What did your physician suggest while you see your pregnancy to term?