Should I have a diastasis recti and umbilical hernia repair before or after my next pregnancy?

I have always had an umbilical hernia, as long as I can remember. Last year, after a twin pregnancy my hernia looks bigger and the muscles are separated quite a bit. Is ir better to have it all fixed befor I get pregnant again, or shouls I wait until Im done having kids to have better results. I'm worried abour hernia complications during pregnancy. Thank you.