First of all if you are a guy, nothing is going to help.
second of all, vitamins don't get you pregnant, go have a long talk with your mother.
if you are a woman trying to conceive, folic acid and multi vitamins help your chances of getting pregnant. ask a doctor or pharmacist which ones would be right for you
Taking vitamins will not increase the speed at which a woman becomes pregnant.
If she is pregnant. You should discuss which vitamins with your doctor.
Prenatal vitamins are the best. Ask your doctor. Don't take vitamins which are not specifically for pregnant women as some (like vitamin A) can cause problems. With vitamins more is not better.
Women who are pregnant should not take normal vitamins. They should ask their doctor for special, prenatal vitamins. Some cases show that too much vitamin A can cause birth defects in children. http://www.womenshealth.gov/faq/pregnancy-medicines.cfm
Pregnant women should take prenatal vitamin supplements which are full of a lot of different vitamins and minerals that will help both the woman and the baby.
You should only take vitamins and iron as advised by your maternity care provider. Flintstones vitamins are for children and while they won't hurt, there are better ones for pregnant women.
Most natural vitamins are safe to take, but if you are pregnant or wanting to become pregnant, you need to be careful then because there are some vitamins that can be harmful to the fetus.
You can take any kind of prenatal vitamin before you get pregnant. If you can't take the prenatal vitamins, try Flintstone vitamins. Doctors recommend this all the time.
No impossible
As long as you are taking your prenatal vitamins you should be ok. but I would ask my doctor to be on the safe side.
You should eat two vitamins.
It can't hurt you.