Very thin uterus...

When I had my son July 2017 my doctor told me my uterus was paper thin and she advised me to not get pregnant again. Saying i wouldnt live through it. Has anyone ever been told this? Apparently now the doctors won't see you until you're 10weeks along. I've never with any of my pregnancies waited to see a doctor always was able to right away. My appointment isn't until Dec 23 and then I'll be 11 weeks 2 days. This was a unplanned pregnancy, my birth control failed me.

I did have a c-section.