^^^^If you read the back of a prenatal bottle.... its uses are for pregnant women, women who are trying to become pregnant, and nursing mothers. Its very good practice to be taking them while TTC! If you read what a prenatal vitamin contains... its pretty easy to see why its a good idea to take them. Folic acid is a nessacity while your pregnant, and helps aid the conception process.

To the O/p general dose is one a day... any brand is fine! Just make sure its got a lot of folic acid! Best of luck in you TTC efforts!