Would getting off birth control help regulate periods?

I’m getting married in a couple months at the beginning of the month, my period is always at the end of the month. a couple times now I have started a second period at the beginning of the month when wedding will be, and also still have my normal one at the end of the month. Really don’t wanna be on my period on my wedding day. Will getting off BC regulate them again? What can I do to prevent this, if anything?