Birth control will not mess up how you date in the future. You just don't ovulate, which is when women tend to be more flirtatious and horny and all of that, but that doesn't mean you just lose your libido when you're on birth control. Please, don't let that article make you think that you won't be attracted to men while on birth control. Birth control has no bearing on who you are attracted to, it will not ruin your dating life. It will not "ruin your senses."
I think it's 7 days for birth control to be out of your system, but I don't know. I think it depends on your own personal body chemistry. Trust me, you will not be more or less attracted to men than when you would be on or off birth control.
*Edit. No you won't. Trust me on this. I know there are all kinds of articles out there saying this, but the difference is SO small that you won't even notice anything whether you are on birth control or not. If you start seeing someone, and then go off birth control, then you won't just suddenly not be attracted to them anymore. It's not like beer goggles...Birth control does not control your brain like that. Please, take that information with a huge grain of salt because this is the internet.