TTC for the past year

Hello everyone. I am a 43 years young mother of 6 and a newlywed wife. All but 1 of my kids are grown and lives on their own. My 7 year old daughter is growing so fast and my husband and I

would really like one more. We both come from big families of more than 10 kids on each side. We don't want that many but a good 7 or 8 is perfect. My husband have always wanted kids of his own but wanted to wait until he was married and wants to give his parents grandchildren before they leave this earth.We even went to Ripley's in St. Augustine, Fla last month so that I could rub the Fertility Figure in hopes of a bundle of joy....but we both ended up rubbing it, lol. Can anyone give me any advice? Most ppl would say I have enough but this is something we both want. He's taken the steps in adopting my 7 year old and loves her as his own but I know he'd love to create one from his own seed.