Tips on Trying to conceive

Hi ladies newly wed here trying to conceive, this will be his first and I have two previous kids my oldest 11 and youngest 9 . I forgot how to do a lot of stuff when it comes to TTC. What’s steps should I take to make sure my body is ready ? And also should I add prenatal vitamins to diet now or wait ? What’s the benefit of taking now? Also any good tips on how I can start getting my body ready and tracking cycles ? This is our first month trying and I want to make sure my body is ready . Thanks ladies .