Curious: sex and cerazette?

[sophiafoxhill]

So I read the instruction leaflet that came with my new pill. Apparently one of the factors that reduce the effectiveness of it is how often you have sex. Obviously, the more you often you have sex, the more likely you are to get pregnant, regardless of whether you're on the pill or not. Was just wondering though, does anyone know the stats or figures? How often must you have sex to dramatically reduce the effectiveness of the pill?

I was just curious as me and my boyfriend have sex ALOT (every time we see each other, sometimes 3 or 4 times).