Is It Dangerous To Conceive With A Thin Uterine Scar?

I have 5 children, first two were vaginal births and the last three c sections. During the last c section Doctor said I have thin uterus scar an he does not recomend me having more kids. I would like to have one more child because I remarried and my husband I want a baby together. Are chances high my uterus will rupture? Please help...