I'm 36 Years Old With History Of Preeclampsia And HELLP

I'm 36 years old with history of preeclampsia and HELLP syndrome. I've been pregnant 3 times and have only 1 living child. My first son was born at 37 weeks gestation by cesarean section due to transverse lie, he weighed 2.3kg. My second son was born in 2013 at 32 weeks by cesarean section due to severe preeclampsia, but he died. 2 months ago I delivered a girl at 26 weeks by cesarean section due to preeclampsia and HELLP syndrome. I know I am high risk now because of the history of preeclampsia twice and 3 cesarean sections as well as my age. I want to try for another baby, my heart is so broken and I cry out to have a healthy baby. Please advise me on what I should do. I want to start trying after 6 to 9 of my last class section.
Thanks you, Mebo.