Hi. Prenatal vitamins
are given to you since you are trying to conceive and it will prevent the occurence of neural tube defects in the baby. Eat a healthy and balanced diet full of organic fruits and vegetables and preferably coloured ones which contain beta carotene
For cofirmation of shape of uterus
you can get a scan done or HSG that will also tell you about the uterine cavity
and tubal patency.