When should I start

When should I start preparing for when we are going to start trying to conceive we are five months from when we are gonna to try for our first 😍 we will be close enough where we can say we are as ready as ever can be ( but are you ever ready? Oooh with our home bought and married and finically stable ( not rich but enough to live modestly) we can’t wait and are so eager to start a family ! But I have read some people say you should start taking prenatals 3 months before? A preconception visit with the doctor as well? I just want to make sure my body is in the best shape for when the time comes! Thank you!