Do I have to start fresh?

K
I am not currently pregnant but only people that are pregnant in my similar situation would be able to answer this which is why I posted on here lol.
I know this is kinda a dumb question but here it goes anyways.......
My not so little one is almost 13 years old and I am currently TTC & was wondering since it's been soooo long and I'm sure a lot has changed in so many years for pregnancy, births & newborns ect. should I consider taking classes or anything that would normally be given to a first time mom?
Like I feel like I don't remember much from my pregnancy.