Does taking prenatal vitamins when you aren't pregnant make it easier to get pregnant? I'm going to start taking them for other reasons. I'm not planning on having a baby any time soon just curious if I need to be a little more cautious about sex. Yes, I know I already need to be and take birth control use condoms and stuff I don't need those comments. I'm just curious if it makes it easier on your body to get pregnant if you take them when you aren't pregnant.