What prenatal should I take if I'm trying?

Krystal • TTC baby number 2. Aubrey Lynn October 2015 .hairstylist, wife, puppy mom
My fiance and I are getting married 1-24-15.. and we would like to try as soon as we are married. When should I start taking prenatals.. now? And if so.. which kind and from where to.. pictures would be good to please!!