Anything you took to help get pregnant

I am 41 and fiancé is 44 and we are trying for our second baby together. Is there anything any of you ladies took to help you get pregnant? I just had my first rainbow baby at age 38 and it was a complicated pregnancy due to some medical issues of my own but I'm not letting that stop me. My doctors said even with what I have going on medically that there is still a chance I'm just concerned about having the baby really early like the last one. I know it is all in God's hands though and Iam putting my faith in Him! Thank you for any responses to help!