Prenatal vitamins are recommended by a doctor to fill out your body’s nutritional gaps. This will help ensure you have a healthy pregnancy and child when you give birth. We might lack many vitamins and minerals, so prenatal vitamins can help prepare your body for pregnancy. In any case, this supplement doesn’t increase a woman’s fertility, nor does it help get pregnant faster. Getting pregnant depends on many other factors, where your partner’s health is also one factor. So, you can’t expect to get pregnant faster after taking these vitamins.