Im 30 y/o with a normal/regular menstual cycle. I dont take birth control because there is no concern if my husband and I get pregnant and I smoke regularly. I have heard that women that take the pill can change the day they start their period by changing start/stop date of their pills, if they have something planned where they dont want to be on their period at that time. I dont take oral contraception and my husband and I have tickets to the Brickyard and I dont want to be on my period during the hot, long party days 8) ...any suggestions?

Thank you