Does having a child improve endometriosis?

Hi, I’m 29 with stage 4 endometriosis and adenomyosis. After years of severe pain and being told to just lose weight, I was finally diagnosed 3 years ago. I’m currently on Dienogest (Visanne), a progesterone pill that stops my periods, so the pain is manageable for now. Doctors say having a child might stop my endo from being a concern. Is this true? Can anyone who’s had kids share how it impacted their endo symptoms? Thank you!