I am starting to take birth control today, and it is my due date. I had normal period pain, and little stains, so I supposed my period was on its way, and decided to take the first pill. It's been nearly two hours and my period still hasn't shown up. What's going to happen? If it doesn't show up soon, do I wait for my period to actually start before taking the second pill? And if I do, will it work normally? I am planning on having sexual intercourse in 2 weeks, without protection. Will it not work properly?