I second this, have a chat with medical professionals and see your options. I got into midwife and obstetric care at the very end of the first trimester of my first pregnancy, too late for the recommended folic acid. I had a very healthy baby, who is an absolute whirlwind of a toddler now.
I completely understand your worries about another stressful pregnancy. I had a sense of "never again!!" when I left the hospital with my second baby. We're fine. Would you have your third baby, if you knew your pregnancy would be healthy and free of complications?