When should I start taking folic acid?

Hello ladies, when is it recommended to start taking folic acid if you’re trying to get pregnant? I’ve always thought any prenatal vitamins is started during pregnancy not before. But I started doing some research and saw I could actually start taking it while I am trying to be pregnant. We are planning to baby dance in the next two weeks when I start ovulating, is it too late to start taking the folic acid now for the next two weeks or should I pause our baby dance till January cycle when I’m sure I have been on folic acid for at least 1 month?