Should I wait or start now????

Jessica • I`m 24 ill be 25 on November 17th I`m married with a soon to be 3 yr old it took us 3-4 yrs to have our son and we want to hsve another baby soon.
I stopped taken my BC this month and started taken my vitamins as soon as I stopped the BC. Should I try this month or wait till next month to try to conceive? ???