Pregnant and Vitamins

It seems like everyone is for prenatal vitamins. However, I'm against anything related with pills. I will go to my Gynecologist in a month and he'll surely will try to talk me into it. Isn't eating healthy good enough?

I'm just not comfortable putting things in my body unless I reallyyy have to

Taking BC I did it only for 2 years in my life otherwise I used condoms and felt saver. Anyway, in the good old days vitamins weren't a thing a kids were popping out healthy so what's the deal?