Vitamin C is supposed to help, but just take a multi vitamin daily. It will have all that stuff in there that you need. It basically just helps keep your body clear of illness and makes your hormone levels be at the right place to conceive. Doesnt guarantee things.
Tell you what though, coincidence or not… I tried to get pregnant for 2 mos. A friend told me to eat yogurt, I ate it the next month 1 time daily and BAM, got pregnant. I think it has to do with the positive cultures in yogurt. Try that. But, dont get the stuff with the fruit in the bottom, it has to be the smooth yoplait style or plain.
Good luck!