I really feel you on this, congratulations on your pregnancy and I can only imagine how much courage it took to get here after what you went through before. Please do see your gynae or PD as soon as possible so they can guide you properly on rest, diet and the right supplements for your specific situation, because every pregnancy is different and you deserve that personalised care. Most doctors will recommend folic acid early on, and eating a balanced diet with plenty of fruits and vegetables is generally a good start, but your gynae will be the best person to advise you on what your body needs right now. You are not alone in this, and taking that first step to see your doctor is the most important thing you can do for yourself and your baby.