Ok, so I started Sprintec birth control pills a week ago, and the chances of getting pregnant while on it alone is 1% per year of use (a little less actually, but for the sake of simplicity, we’ll stick with 1%).(adsbygoogle = window.adsbygoogle || []).push({});

I also have condoms, the Today sponge, and can also use the withdrawal method.

According to the sprintec instructions, the chances of getting pregnant in a year for each of the other methods are:

Condoms alone = 14%

Today sponge= 30% (approximately, may be from 10-40%)

Withdrawal method= 20%

So I was just curious what my chances of getting pregnant are if I use:

-Sprintec and the Withdrawal method,

-Sprintec and the Today sponge,

-Sprintec and condoms,

-Sprintec, the Today sponge, and condoms,

-Sprintec, the Today sponge, and the Withdrawal method,

-Sprintec, the Today sponge, condoms, and the Withdrawal method,

So how should I go about figuring out these possibilities, and yes, I know they are only theoretical values, but I would like to know how all of these compare to one another. Thanks!

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# Chances of getting pregnant when using 2-3 contraceptives together. Just curious!

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